WO2011114851A1 - 高周波積層部品および積層型高周波フィルタ - Google Patents
高周波積層部品および積層型高周波フィルタ Download PDFInfo
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- WO2011114851A1 WO2011114851A1 PCT/JP2011/054089 JP2011054089W WO2011114851A1 WO 2011114851 A1 WO2011114851 A1 WO 2011114851A1 JP 2011054089 W JP2011054089 W JP 2011054089W WO 2011114851 A1 WO2011114851 A1 WO 2011114851A1
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- 239000003990 capacitor Substances 0.000 claims abstract description 271
- 239000012212 insulator Substances 0.000 claims description 132
- 238000010168 coupling process Methods 0.000 claims description 47
- 238000005859 coupling reaction Methods 0.000 claims description 47
- 230000008878 coupling Effects 0.000 claims description 45
- 238000010030 laminating Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract 5
- 239000010410 layer Substances 0.000 description 246
- 238000010586 diagram Methods 0.000 description 17
- 238000003780 insertion Methods 0.000 description 11
- 230000037431 insertion Effects 0.000 description 11
- 230000003071 parasitic effect Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/09—Filters comprising mutual inductance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1708—Comprising bridging elements, i.e. elements in a series path without own reference to ground and spanning branching nodes of another series path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1716—Comprising foot-point elements
- H03H7/1725—Element to ground being common to different shunt paths, i.e. Y-structure
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1766—Parallel LC in series path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1775—Parallel LC in shunt or branch path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1791—Combined LC in shunt or branch path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/146—Inductive couplings in combination with capacitive coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
- H03H2001/0085—Multilayer, e.g. LTCC, HTCC, green sheets
Definitions
- the present invention relates to a high-frequency multilayer component that realizes a desired circuit function by forming electrodes in a predetermined pattern on a plurality of insulator layers, and a multilayer high-frequency filter that uses the configuration of the high-frequency multilayer component.
- the high-frequency laminated component has a structure in which a plurality of insulator layers are laminated as disclosed in Patent Document 1, for example.
- inductors and capacitors are formed by forming predetermined electrode patterns on a plurality of insulator layers. Then, by connecting inductors and capacitors composed of these electrode patterns with other electrode patterns, a circuit function such as a band-pass filter is realized.
- Such a high-frequency laminated component Since such a high-frequency laminated component is used by being mounted on another circuit board, it has a terminal electrode for mounting.
- the terminal electrode is usually formed on the end face (side face) or bottom face of the high-frequency laminated component. Therefore, it is necessary to provide a lead electrode for connecting the electrode pattern constituting the circuit function unit such as the above-described inductor or capacitor and the terminal electrode.
- a lead electrode for connecting these electrodes is formed on the end surface (side surface) of the laminate.
- the lead electrode between the electrode constituting the circuit function unit and the ground electrode becomes long, and the influence of the parasitic inductor Lg becomes large.
- the parasitic inductor Lg exists, the attenuation characteristic in the high frequency band is deteriorated. For this reason, even if a filter such as a bandpass filter is configured, a desired pass characteristic cannot be obtained.
- FIG. 1 shows an equivalent circuit of a high-frequency laminated component including a ground impedance adjustment circuit.
- the high-frequency laminated component includes first and second input / output ports Pio1, Pio2, a circuit function unit, and a parasitic inductor Lg, and three capacitors C1, C2, C12 are connected in a ⁇ -type.
- a ground impedance adjusting circuit By providing such a ground impedance adjustment circuit, an attenuation pole can be formed in a desired frequency band, so that deterioration of the attenuation characteristic in the high frequency band due to the parasitic inductor Lg can be prevented.
- Patent Document 2 there is a structure described in Patent Document 2 as a multilayer high-frequency filter including a high-frequency multilayer component in which a plurality of insulator layers are laminated.
- inductors and capacitors are formed by forming predetermined electrode patterns on a plurality of insulator layers.
- a plurality of LC resonators are formed from inductors and capacitors formed of these electrode patterns.
- LC resonators at both ends are respectively connected to input / output terminals, and inductors of adjacent LC resonators are electromagnetically coupled to each other, thereby forming a filter circuit including a plurality of LC resonators. Is done.
- a desired characteristic may be obtained by providing a jump coupling capacitor that bypasses a plurality of stages of LC resonators and capacitively couples input / output terminals at both ends.
- the electrode which comprises the capacitor for jump coupling is the laminated body in which the electrode for input / output used as an input / output terminal is formed like the electrode shown to 160 of FIG. 42 of patent document 2, and the electrode shown to 260 of FIG. It is formed in the shape extended long in the direction which connects the both ends.
- FIG. 2 is a view showing a laminated body 10P of a conventional ground impedance adjusting circuit.
- FIG. 3 is a diagram showing pass characteristics of the ground impedance adjusting circuit having the structure of FIG.
- FIG. 4A is an equivalent circuit diagram of a band-pass filter having a three-stage LC resonator, and
- FIG. 4B is a band impedance shown in FIG. It is a pass characteristic figure at the time of constituting a pass filter.
- the laminated body 10P of the ground impedance adjusting circuit has a structure in which five insulating layers 901P to 905P are laminated.
- Input / output electrodes 201 and 202 and a ground electrode 110 are formed on the lowermost (first) insulator layer 901P.
- the ground electrode 110 is formed on the bottom surface of the insulator layer 901P, and the input / output electrodes 201 and 202 are respectively formed from the two opposite end surfaces to the bottom surface of the insulator layer 901P.
- the input / output electrodes 201 and 202 are formed on the end faces of the respective layers other than the uppermost (fifth) insulator layer 905P.
- the inner layer ground electrode 120 is formed on the second insulator layer 902P.
- the inner layer ground electrode 120 is connected to the ground electrode 110 by a conductive via hole.
- Capacitor electrodes 131 and 132 are formed on the third insulator layer 903P, a lead-out electrode for connecting the capacitor electrode 131 and an input / output electrode 201 (not shown), and an input / output of the capacitor electrode 132.
- a lead-out electrode that connects the electrode for use 202 is formed.
- the capacitor electrode 140 is formed on the fourth insulator layer 904P.
- the opposing region between the capacitor electrode 131 and the inner layer ground electrode 120 is the capacitor C1 in FIG.
- a region where the capacitor electrode 132 and the inner ground electrode 120 face each other is the capacitor C2 in FIG.
- the opposing region of the capacitor electrode 140 and the capacitor electrodes 131 and 132 becomes the capacitor C12 in FIG.
- the parasitic inductor Lg includes a via hole inductor.
- the capacitors constituting the ground impedance adjustment circuit generate self-resonance points in the high frequency band, particularly by the capacitors C1 and C2, and are coupled by the capacitor C12.
- the pass characteristics that should have been improved are locally degraded.
- self-resonance occurs due to the residual inductance of the capacitor electrode 131 and the capacitance configured between the capacitor electrode 131 and the ground electrode 120.
- the electrodes forming the inductors of the LC resonators are arranged at predetermined intervals along the direction connecting the both end portions. Therefore, when the electrodes constituting the jump coupling capacitor have the shape as described above, they are arranged so as to cross over a plurality of inductor electrodes as viewed from the stacking direction.
- the electrodes constituting the jump coupling capacitor greatly affect the coupling between the inductors, and the insertion loss increases. As a result, the filter characteristics (passage characteristics and attenuation characteristics) are degraded.
- an object of the present invention is to suppress high-frequency multilayer components and multilayer high-frequency filters having excellent characteristics by suppressing the occurrence of resonance points or suppressing factors that increase insertion loss. Is to realize.
- the present invention relates to a pair of input / output terminals, a circuit function unit that realizes a predetermined function connected between the pair of input / output terminals, a series capacitor connected between the pair of input / output terminals, and the series capacitor
- the present invention relates to a high-frequency multilayer component having a ground impedance adjusting circuit composed of a first parallel capacitor and a second parallel capacitor connected between the both ends of the capacitor and the ground.
- This high-frequency laminated component is formed by forming at least a ground impedance adjusting circuit by a laminated body in which a plurality of insulator layers each having a predetermined electrode pattern are laminated.
- the high-frequency multilayer component further includes at least inner layer ground electrodes formed on different insulator layers of the multilayer body.
- the electrodes forming the parallel capacitor are arranged between the inner layer ground electrodes.
- one counter electrode of the first parallel capacitor and the second parallel capacitor is formed by the inner layer ground electrode.
- the other counter electrode of the first parallel capacitor and the second parallel capacitor is disposed between the two inner layer ground electrodes.
- one counter electrode of the first parallel capacitor and the second parallel capacitor is directly a ground electrode, and these capacitors are also sandwiched between inner layer ground electrodes. Thereby, the frequency characteristic can be further improved.
- the other counter electrode of the first parallel capacitor and the second parallel capacitor also serves as one counter electrode of a series capacitor composed of counter electrodes facing each other.
- routing electrodes for the series capacitor, the first parallel capacitor, and the second parallel capacitor are omitted.
- the frequency characteristics are further improved, and the size can be further reduced.
- the circuit function unit is a filter having a predetermined frequency pass characteristic.
- a specific example of the circuit function unit is shown.
- the circuit function unit is composed of electrode patterns formed in a plurality of laminated bodies. In this configuration, a specific shape of the circuit function unit is shown. As described above, by forming the circuit function unit in the laminated body, the high-frequency laminated component can be realized only by a single laminated body.
- the circuit function unit includes a capacitor, and the capacitor is shared by at least one of the series capacitor, the first parallel capacitor, and the second parallel capacitor constituting the ground impedance adjustment circuit.
- This configuration shows a specific shape when a capacitor is included in the circuit function section.
- the circuit function unit and the ground impedance adjustment circuit are at least partially used in combination, so that the size can be reduced.
- the circuit function unit is a mounted component mounted on the laminated body.
- a mounting land for mounting a mounting component is formed on the laminate.
- This configuration shows the specific shape of the circuit function unit.
- the present invention also provides a pair of input / output terminals, a series capacitor connected between the pair of input / output terminals, a first parallel capacitor connected between both ends of the series capacitor and the ground, and a first capacitor
- the present invention relates to a high-frequency multilayer component having a ground impedance adjustment circuit composed of two parallel capacitors.
- This high-frequency laminated component is formed by forming a ground impedance adjusting circuit by a laminated body in which a plurality of insulator layers each having a predetermined electrode pattern are laminated.
- the high-frequency laminated component further includes at least two inner layer ground electrodes formed on different intermediate layers of the laminate.
- the electrode forming the series capacitor is disposed between the two inner layer ground electrodes.
- This configuration shows a case where the high-frequency laminated component is composed only of a ground impedance adjustment circuit.
- one counter electrode of the first parallel capacitor and the second parallel capacitor is formed by the inner layer ground electrode.
- the other counter electrode of the first parallel capacitor and the second parallel capacitor is disposed between the two inner layer ground electrodes.
- one counter electrode of the first parallel capacitor and the second parallel capacitor is directly the ground electrode, and these capacitors are also sandwiched between the inner layer ground electrodes.
- the other counter electrode of the first parallel capacitor and the second parallel capacitor also serves as one counter electrode of the series capacitor.
- the routing electrodes between the series capacitor, the first parallel capacitor, and the second parallel capacitor are omitted.
- the frequency characteristics are further improved, and the size can be further reduced.
- the present invention also relates to a multilayer high frequency filter.
- the multilayer high frequency filter includes a pair of input / output terminals, a plurality of LC resonators connected in high frequency between the pair of input / output terminals, and a jump coupling capacitor directly connected between the pair of input / output terminals. And comprising.
- the multilayer high-frequency filter is formed by laminating a plurality of insulator layers each having a predetermined electrode pattern, in which an inductor and a capacitor constituting an LC resonator and a jump-coupling capacitor are laminated.
- the inner layer ground electrode is disposed between the electrode pattern constituting the inductor and the electrode pattern constituting the jump coupling capacitor.
- the electrode pattern constituting the jump coupling capacitor does not affect the coupling between the inductors of the plurality of LC resonators. Thereby, desired coupling can be obtained between the inductors, and an increase in insertion loss can be suppressed.
- the multilayer high-frequency filter of the present invention further includes input / output capacitors connected respectively between the pair of input / output terminals and the ground.
- an input / output capacitor is formed by a multilayer electrode pattern, and at least a jump coupling capacitor is disposed between inner layer ground electrodes formed in different insulator layers.
- a ⁇ -type circuit is configured by the input / output capacitor and the jump coupling capacitor.
- attenuation characteristics can be improved.
- the self-resonance of the parallel capacitor can be suppressed by sandwiching the ⁇ -type parallel capacitor between the inner layer ground electrodes. Thereby, the attenuation characteristic can be further improved.
- the electrode pattern forming the input / output capacitor is also disposed between inner layer ground electrodes formed in different insulator layers.
- the attenuation characteristics can be further improved by sandwiching all the capacitors between the inner layer ground electrodes.
- via holes for connecting to the capacitor of the LC resonator and the ground are formed at both ends of the electrode pattern of the inductor of the LC resonator, and the inductor includes the electrode pattern of the inductor and two via holes. It is comprised by.
- the inductor is composed of an electrode pattern and two via holes connected to the electrode pattern.
- the electrodes of the inductor extend in a loop shape, and the coupling between the inductors can be strengthened.
- the Q value of the inductor can be improved, and the insertion loss of the filter can be improved.
- the via hole connected to the electrode pattern of each inductor is formed at a position that overlaps when the multilayer body is viewed from the side.
- the interval between via holes constituting adjacent inductors can be reduced. Thereby, the coupling between the inductors can be strengthened.
- the electrode pattern constituting the inductor is provided on a plurality of insulator layers.
- Each electrode pattern provided in the plurality of insulator layers is connected in parallel to two via holes.
- the ground to which the electrode pattern of the inductor is connected is an inner layer ground electrode formed on a predetermined insulator layer different from the bottom surface of the multilayer body.
- the inner layer ground electrode to which the electrode pattern of the inductor is connected is the inner layer ground disposed between the electrode pattern constituting the inductor and the electrode pattern constituting the jump coupling capacitor. Electrode.
- the ground to which the inductor is connected is also used as the inner layer ground electrode that separates the above-described inductor and jump coupling capacitor, the number of components of the multilayer body can be reduced.
- via holes connected to the capacitors of the electrode patterns of any adjacent inductor are located at different ends.
- electrode patterns of arbitrary adjacent inductors among the inductors constituting the plurality of LC resonators are formed on the same insulator layer.
- the electrode patterns of adjacent inductors are close to each other, and the coupling between the inductors can be strengthened.
- the external ground electrode for connecting to the external ground and the external input / output terminals forming a pair of input / output terminals are arranged on the bottom surface of the multilayer body.
- the electrode for mounting the multilayer high frequency filter on the external circuit board is provided on the bottom surface of the multilayer body, the mounting area can be reduced.
- the series capacitor connected between the pair of input / output terminals, and the first parallel capacitor and the second parallel capacitor connected between both ends of the series capacitor and the ground, respectively.
- the series capacitor is also used as an electrode pattern constituting the jump coupling capacitor.
- the multilayer high-frequency filter can be formed more compactly.
- the present invention it is possible to suppress the generation of resonance points even using a ground impedance adjustment circuit composed of a ⁇ -type circuit of a capacitor. Moreover, according to this invention, the unnecessary coupling
- the equivalent circuit of the high frequency laminated component containing a ground impedance adjustment circuit is shown. It is a figure which shows the laminated structure of the conventional ground impedance adjustment circuit. It is a figure which shows the passage characteristic of the ground impedance adjustment circuit of the structure of FIG. It is an equivalent circuit diagram of a bandpass filter provided with a three-stage LC resonator, and a pass characteristic diagram when a bandpass filter is configured using a ground impedance adjustment circuit having a conventional structure. It is a figure which shows the external appearance perspective view and laminated structure of the high frequency laminated component of 1st Embodiment.
- FIG. 5A is an external perspective view of the high-frequency laminated component of the present embodiment
- FIG. 5B is a diagram showing a laminated configuration of the high-frequency laminated component of the present embodiment.
- the high-frequency multilayer component 10A shown in FIG. 5 is a band-pass filter including a three-stage LC parallel circuit, and the equivalent circuit is the same as that shown in FIG.
- the high-frequency laminated component is composed of a laminated body 10A in which ten insulating layers 901 to 910 are laminated.
- Each of the insulator layers 901 to 910 constituting the stacked body 10A is a flat plate having a predetermined thickness (micrometer order).
- An input / output electrode 201 is formed on one end surface of the laminated body 10A, and an input / output electrode 202 is formed on the opposite end surface.
- a side surface on which the input / output electrodes 201 and 202 are formed is referred to as an “end surface”, and a side surface orthogonal to the side surface is referred to as a “side surface”.
- Input / output electrodes 201 and 202 and a ground electrode 110 are formed on the lowermost (first) insulator layer 901.
- the ground electrode 110 is formed on the bottom surface of the insulator layer 901, and the input / output electrodes 201 and 202 are respectively formed from the two opposite end surfaces to the bottom surface of the insulator layer 901.
- the input / output electrodes 201 and 202 are formed on the end faces of the respective layers other than the uppermost (tenth) insulator layer 910.
- the input / output electrodes 201 and 202 may also be formed on the uppermost insulator layer 910.
- the inner layer ground electrode 120 is formed on the second insulator layer 902.
- the inner layer ground electrode 120 is formed over substantially the entire surface of the insulator layer 902.
- capacitor electrodes 131 and 132 having a predetermined area are formed on the third insulator layer 903, capacitor electrodes 131 and 132 having a predetermined area are formed.
- the third insulating layer 903 is formed with a routing electrode that connects the capacitor electrode 131 and an input / output electrode 201 (not shown) on one end face.
- the third insulating layer 903 is formed with a routing electrode that connects the capacitor electrode 132 and the input / output electrode 202 on the other end face.
- the capacitor electrode 140 is formed on the fourth insulator layer 904.
- the capacitor electrode 140 is formed so as to partially face the capacitor electrodes 131 and 132 of the third insulator layer 903.
- capacitor electrodes 151 and 152 are formed in the same manner as the capacitor electrodes 131 and 132 of the third insulating layer 903.
- the capacitor electrode 151 is formed to face the capacitor electrode 131 when viewed in the stacking direction.
- the capacitor electrode 152 is formed to face the capacitor electrode 132 when viewed in the stacking direction.
- the fifth insulating layer 905 is formed with a routing electrode that connects the capacitor electrode 151 and an input / output electrode 201 (not shown) on one end face.
- the fifth insulating layer 905 is formed with a routing electrode that connects the capacitor electrode 152 and the input / output electrode 202 on the other end face.
- the inner layer ground electrode 160 is formed on the sixth insulator layer 906.
- the inner layer ground electrode 160 is formed over substantially the entire surface of the insulator layer 906.
- capacitor electrodes 171, 172 and 173 having a predetermined area are formed.
- input / output routing electrodes 181 and 182 are formed in the eighth insulator layer 908, input / output routing electrodes 181 and 182 are formed.
- the routing electrode 181 is connected to an input / output electrode 201 (not shown) on one end face.
- the routing electrode 182 is connected to the input / output electrode 202 on the other end face.
- inductor linear electrodes 191, 192, 193 are formed in the ninth insulator layer 909.
- the linear electrodes 191, 192, 193 have a shape extending in the direction along the end face.
- the linear electrodes 191, 192, 193 are formed at a predetermined interval.
- each via hole has a shape extending in the stacking direction.
- the via hole 800 is formed to connect the ground electrode 110 of the insulator layer 901, the inner layer ground electrode 120 of the insulator layer 902, and the inner layer ground electrode 160 of the insulator layer 906.
- the via holes 800 are formed at two positions close to the opposing side surfaces of each layer.
- the via hole 801 is formed so as to connect the lead-out electrode 181 of the insulator layer 908, the capacitor electrode 171 of the insulator layer 907, and the linear electrode 191.
- the via hole 801 is connected to the vicinity of one end in the extending direction of the linear electrode 191.
- the via hole 811 is formed so as to connect the inner layer ground electrode 160 of the insulator layer 906 and the linear electrode 191.
- the via hole 811 is connected to the vicinity of the other end in the extending direction of the linear electrode 191.
- the via hole 812 is formed so as to connect the inner layer ground electrode 160 of the insulator layer 906 and the linear electrode 192.
- the via hole 812 is connected near one end in the extending direction of the linear electrode 192.
- the via hole 802 is formed so as to connect the capacitor electrode 172 of the insulator layer 907 and the linear electrode 192.
- the via hole 802 is connected to the vicinity of the other end in the extending direction of the linear electrode 192.
- the via hole 803 is formed so as to connect the routing electrode 182 of the insulator layer 908, the capacitor electrode 173 of the insulator layer 907, and the linear electrode 193.
- the via hole 803 is connected near one end in the extending direction of the linear electrode 193.
- the via hole 813 is formed so as to connect the inner layer ground electrode 160 of the insulator layer 906 and the linear electrode 193.
- the via hole 813 is connected to the vicinity of the other end in the extending direction of the linear electrode 193.
- the input / output electrode 201 becomes the first input / output port Pio1 in FIG. 4A
- the input / output electrode 202 becomes the second input / output port Pio2 in FIG. 4A. .
- a combination of the capacitor electrode 131 and the inner layer ground electrode 120 and a combination of the capacitor electrode 151 and the inner layer ground electrode 160 correspond to the capacitor C1 in FIG. 4A (corresponding to the “first parallel capacitor” of the present invention). It becomes.
- the combination of the capacitor electrode 132 and the inner layer ground electrode 120, and the combination of the capacitor electrode 152 and the inner layer ground electrode 160 correspond to the capacitor C2 in FIG. 4A (corresponding to the “second parallel capacitor” of the present invention). It becomes.
- the combination of the capacitor electrode 140 and the capacitor electrodes 131 and 132 and the combination of the capacitor electrode 140 and the capacitor electrodes 151 and 152 correspond to the capacitor C12 in FIG. 4A (the “series capacitor” of the present invention). ).
- the capacitor C12 also serves as the “jump coupling capacitor” of the present invention.
- the combination of capacitor electrode 171 and inner layer ground electrode 160, the combination of capacitor electrode 131 and inner layer ground electrode 120, and the combination of capacitor electrode 151 and inner layer ground electrode 160 are for resonance in FIG. Capacitor Cr1.
- the combination of the capacitor electrode 173 and the inner layer ground electrode 160, the combination of the capacitor electrode 132 and the inner layer ground electrode 130, and the combination of the capacitor electrode 152 and the inner layer ground electrode 160 are the resonance capacitors shown in FIG. Cr2.
- the combination of the capacitor electrode 172 and the inner layer ground electrode 160 becomes the resonance capacitor Cr3 of FIG.
- the linear electrode 191 and the via holes 801 and 811 serve as the resonance inductor Lr1 in FIG.
- the resonance inductor Lr1 has a loop shape that is counterclockwise when viewed from the end face on the input / output electrode 202 side of the multilayer body 10A, with the side connected to the inner layer ground electrode 160 as a base point.
- the linear electrode 192 and the via holes 802 and 812 form the resonance inductor Lr2 in FIG.
- the resonance inductor Lr2 has a loop shape that is clockwise when viewed from the end face on the input / output electrode 202 side of the multilayer body 10A, with the side connected to the inner layer ground electrode 160 as a base point.
- the linear electrode 193 and the via holes 803 and 813 serve as the resonance inductor Lr3 in FIG.
- the resonance inductor Lr3 has a loop shape that is counterclockwise when viewed from the end face on the input / output electrode 202 side of the multilayer body 10A, with the side connected to the inner layer ground electrode 160 as a base point.
- the linear electrode 191 and the via holes 801 and 811 and the linear electrode 192 and the via holes 802 and 812 are arranged at a predetermined interval, so that the coupling inductance M12 of FIG.
- the portion of the via hole 800 between the ground electrode 110 and the inner layer ground electrode 120 becomes the contributing inductor Lg.
- a high-frequency multilayer component of a multilayer high-frequency filter that integrally includes a three-stage LC resonator and a ground impedance adjustment circuit including a contributing inductor Lg is realized. be able to.
- the capacitors C12, C1, and C2 constituting the ground impedance adjustment circuit are sandwiched between the inner layer ground electrodes, whereby the self-resonance of these capacitors can be suppressed.
- the electrode pattern is formed so as to have symmetry as in the present embodiment, self-resonance is likely to occur, but self-resonance can be suppressed by sandwiching between the inner-layer ground electrodes.
- FIG. 6 is a pass characteristic diagram of a band-pass filter including a three-stage LC resonator having the structure of the present embodiment.
- the generation of resonance points as shown in FIG. 4B of the conventional structure can be suppressed.
- the linear electrode 191 and via holes 801 and 811 of the resonance inductor Lr1, the linear electrodes 192 and via holes 802 and 812 of the resonance inductor Lr2, the linear electrode 193 and the via holes 803 and 813 of the resonance inductor Lr3 are jump-coupled.
- An inner layer ground electrode 160 is disposed between the capacitor capacitor 140 and the capacitor electrode 140.
- the capacitor electrode 140 of the jump coupling capacitor does not act on the electromagnetic field coupling of the resonance inductors Lr1, Lr2, and Lr3.
- bonding by the inductors Lr1, Lr2, and Lr3 for resonance can be suppressed, and the insertion loss as a filter can be reduced.
- FIG. 7A is a pass characteristic diagram of a bandpass filter having the structure of the present embodiment
- FIG. 7B is a pass characteristic diagram of a bandpass filter having a conventional configuration that has the same equivalent circuit.
- an attenuation pole can be provided in the attenuation band (near 2.2 GHz) near the low frequency side of the pass band that could not be formed by the conventional structure.
- the attenuation band near 2.2 GHz
- the capacitor C12 formed of the capacitor electrode 140 functions as a ⁇ -type circuit connected between the input / output terminals Pio1 and Pio2 together with the capacitors C1 and C2.
- a ground impedance adjustment circuit that improves the attenuation characteristics on the high frequency side of the pass band can be realized.
- capacitor electrodes constituting these capacitors C12, C1, and C2 are sandwiched between the inner layer ground electrodes 120 and 160, self-resonance of these capacitors, particularly as parallel capacitors.
- the self-resonance of the capacitors C1 and C2 that function also can be suppressed. Thereby, it is possible to realize a multilayer high-frequency filter having further excellent band characteristics.
- the linear electrodes 191, 192, and 193 constituting the resonance inductors Lr 1, Lr 2, and Lr 3 are all formed on the same insulator layer 909. For this reason, compared with the case where these linear electrodes are formed in the respectively different insulator layer, between linear electrodes can be shortened. This can also strengthen the coupling between the inductors.
- via holes connected to the respective linear electrodes 191, 192, 193 are formed so as to overlap each other when viewed from the end face side where the input / output electrodes 201, 202 of the laminated body 10A are formed. In this configuration, the distance between via holes can be shortened. This can also strengthen the coupling between the inductors.
- the adjacent resonance inductor Lr1 and resonance inductor Lr2 have opposite winding directions with the inner layer ground electrode 160 as a base point.
- the adjacent resonance inductor Lr2 and resonance inductor Lr3 have opposite winding directions with the inner layer ground electrode 160 as a base point.
- the linear electrodes 191, 192, 193 and via holes 801, 811, 802, 812, 803, 813 constituting the inductor are directly connected to the inner layer ground electrode 160, and the external ground electrode 110 formed on the bottom surface of the multilayer body 10 A. Not connected directly to. Thereby, the eddy current loss resulting from the said external ground electrode 110 can be suppressed. As a result, the Q of each LC resonator can be improved.
- the capacitor C12 serves as both a jumping coupling capacitor and a series capacitor of the ground impedance adjustment circuit. Therefore, it is possible to reduce the number of components of the laminated body 10A as compared with the case where these are formed individually. Thereby, the multilayer high-frequency filter having the excellent band characteristics as described above can be formed in a smaller size.
- the inner layer ground electrode 160 disposed between the electrode pattern constituting the resonance inductors Lr1, Lr2, Lr3 and the electrode pattern constituting the capacitor C12 is a linear shape constituting the resonance inductors Lr1, Lr2, Lr3.
- the inner layer ground electrode to which the electrodes 191, 192 and 193 and the via holes 801, 811, 802, 812, 803 and 813 are directly connected is also used. Thereby, the component of 10 A of laminated bodies can be decreased rather than forming separately. Also by this, the multilayer high frequency filter having excellent band characteristics as described above can be formed in a smaller size.
- FIG. 8 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the input / output electrodes 111 and 112 are formed on the bottom surface of the laminated body 10B.
- a further insulator layer 911 is provided between the lowermost insulator layer 901 of the laminate 10B and the insulator layer 902 having the innermost ground electrode 120 at the lowest position inside the laminate. . Since other configurations are the same as those of the high-frequency laminated component shown in the first embodiment, description thereof will be omitted.
- Input / output bottom electrodes 111 and 112 are formed together with the ground electrode 110 on the bottom surface of the lowermost insulator layer 901. These input / output bottom electrodes 111 and 112 are formed so as to sandwich the ground electrode 110.
- the input / output bottom electrode 111 is connected to the input / output electrode 201 on the end face, and the input / output bottom electrode 112 is connected to the input / output electrode 202 on the end face.
- An insulator layer 911 is disposed on the upper surface of the lowermost layer. Capacitor electrodes 211 and 212 having a predetermined area are formed on the insulator layer 911.
- the capacitor electrode 211 is formed to face the input / output bottom electrode 111 of the insulator layer 901.
- the capacitor electrode 212 is formed so as to face the input / output bottom electrode 112 of the insulator layer 901.
- the insulator layer 911 is formed with a lead electrode that connects the capacitor electrode 211 and an input / output electrode 201 (not shown) on one end face.
- the insulator layer 911 is formed with a lead electrode that connects the capacitor electrode 212 and the input / output electrode 202 on the other end face.
- the self-resonance of the capacitance of the ground impedance adjustment circuit can be suppressed and a high-frequency laminated component with improved frequency characteristics can be realized as in the first embodiment. That is, a multilayer high-frequency filter having excellent band characteristics can be realized. Furthermore, by using the structure of the present embodiment, it is possible to suppress parasitic capacitance generated between the input / output bottom electrodes 111 and 112 and the inner layer ground electrode 120, and to further improve the frequency characteristics.
- FIG. 9 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the multilayer body 10C of the high-frequency multilayer component of this embodiment has four LC resonators compared to the multilayer body 10B of the high-frequency multilayer component shown in the second embodiment, and the inner-layer ground electrode 120, the ground electrode 110, The structure of the via hole connecting the two is different. Since the other configuration is the same as that of the multilayer body 10B of the high-frequency multilayer component shown in the second embodiment, only the changed part will be described and the description of the same part will be omitted.
- capacitor electrodes 171, 172, 173, and 174 having a predetermined area are formed on the insulator layer 907.
- Insulator layer 909 is formed with inductor linear electrodes 191, 192, 193, 194.
- the linear electrodes 191, 192, 193, 194 have a shape extending in a direction along the end face.
- the linear electrodes 191, 192, 193, 194 are formed at a predetermined interval.
- the via hole 800 includes via holes 800A and 800B.
- the via hole 800A is formed to connect the ground electrode 110 of the insulator layer 901 and the inner layer ground electrode 120 of the insulator layer 902.
- the via hole 800A is formed in one place.
- the via hole 800 ⁇ / b> B is formed so as to connect the inner layer ground electrode 120 of the insulator layer 902 and the inner layer ground electrode 160 of the insulator layer 906.
- the via holes 800B are formed at two positions close to the opposing side surfaces of each layer.
- the via hole 801 is formed so as to connect the lead-out electrode 181 of the insulator layer 908, the capacitor electrode 171 of the insulator layer 907, and the linear electrode 191.
- the via hole 801 is connected to the vicinity of one end in the extending direction of the linear electrode 191.
- the via hole 811 is formed so as to connect the inner layer ground electrode 160 of the insulator layer 906 and the linear electrode 191.
- the via hole 811 is connected to the vicinity of the other end in the extending direction of the linear electrode 191.
- the via hole 812 is formed so as to connect the inner layer ground electrode 160 of the insulator layer 906 and the linear electrode 192.
- the via hole 812 is connected near one end in the extending direction of the linear electrode 192.
- the via hole 802 is formed so as to connect the capacitor electrode 172 of the insulator layer 907 and the linear electrode 192.
- the via hole 802 is connected to the vicinity of the other end in the extending direction of the linear electrode 192.
- the via hole 813 is formed so as to connect the inner layer ground electrode 160 of the insulator layer 906 and the linear electrode 193.
- the via hole 813 is connected near one end in the extending direction of the linear electrode 193.
- the via hole 803 is formed so as to connect the capacitor electrode 173 of the insulator layer 907 and the linear electrode 193.
- the via hole 803 is connected to the vicinity of the other end in the extending direction of the linear electrode 193.
- the via hole 804 is formed to connect the routing electrode 182 of the insulator layer 908, the capacitor electrode 174 of the insulator layer 907, and the linear electrode 194.
- the via hole 804 is connected near one end in the extending direction of the linear electrode 194.
- the via hole 814 is formed so as to connect the inner layer ground electrode 160 of the insulator layer 906 and the linear electrode 194.
- the via hole 814 is connected near the other end in the extending direction of the linear electrode 194.
- FIG. 10 is an equivalent circuit diagram of the multilayer high-frequency filter of the third embodiment.
- the input / output electrode 201 becomes the first input / output port Pio1 in FIG. 10, and the input / output electrode 202 becomes the second input / output port Pio2 in FIG.
- the combination of the capacitor electrode 140 and the capacitor electrodes 131 and 132 and the combination of the capacitor electrode 140 and the capacitor electrodes 151 and 152 become the jump-coupling capacitor C12 of FIG.
- This capacitor C12 also serves as a series capacitor of the ground impedance adjustment circuit, as in the above-described embodiment.
- the linear electrode 191 and the via holes 801 and 811 form the resonance inductor Lr1 in FIG.
- the resonance inductor Lr1 has a loop shape that is counterclockwise when viewed from the end face on the input / output electrode 202 side of the multilayer body 10C, with the side connected to the inner layer ground electrode 160 as a base point.
- the linear electrode 192 and the via holes 802 and 812 form the resonance inductor Lr2 in FIG.
- the resonance inductor Lr2 has a loop shape that is clockwise when viewed from the end face on the input / output electrode 202 side of the multilayer body 10C, with the side connected to the inner layer ground electrode 160 as a base point.
- the linear electrode 193 and the via holes 803 and 813 serve as the resonance inductor Lr3 in FIG.
- the resonance inductor Lr3 has a loop shape that is clockwise when viewed from the end surface on the input / output electrode 202 side of the multilayer body 10C, with the side connected to the inner layer ground electrode 160 as a base point.
- the linear electrode 194 and the via holes 804 and 814 form the resonance inductor Lr4 in FIG.
- the resonance inductor Lr4 has a loop shape that is counterclockwise when viewed from the end surface on the input / output electrode 202 side of the multilayer body 10C, with the side connected to the inner layer ground electrode 160 as a base point.
- the linear inductance 192 and the via holes 802 and 812 and the linear electrode 193 and the via holes 803 and 813 are arranged at a predetermined interval, thereby realizing the coupling inductance M23 of FIG.
- the combination of the capacitor electrode 171 and the inner layer ground electrode 160, the combination of the capacitor electrode 151 and the inner layer ground electrode 160, and the capacitor electrode 131 and the inner layer ground electrode 120 form the resonance capacitor Cr1 in FIG.
- a combination of the capacitor electrode 172 and the inner layer ground electrode 160 becomes the resonance capacitor Cr2 of FIG.
- a combination of the capacitor electrode 173 and the inner layer ground electrode 160 becomes the resonance capacitor Cr3 of FIG.
- the combination of the capacitor electrode 174 and the inner layer ground electrode 160, the combination of the capacitor electrode 152 and the inner layer ground electrode 160, and the combination of the capacitor electrode 132 and the inner layer ground electrode 160 become the resonance capacitor Cr4 of FIG.
- the combination of the capacitor electrode 131 and the inner layer ground electrode 120 and the combination of the capacitor electrode 151 and the inner layer ground electrode 160 become the capacitor C1 of FIG.
- the combination of the capacitor electrode 132 and the inner layer ground electrode 120 and the combination of the capacitor electrode 152 and the inner layer ground electrode 160 become the capacitor C2 in FIG.
- a bandpass filter including a four-stage LC resonator as shown in the equivalent circuit of FIG. 10 is configured by adopting the structure as shown in FIG. can do.
- the frequency characteristics can be improved as in the above-described embodiments. Furthermore, as in this embodiment, by changing the number of via holes that are directly connected to the ground electrode 110, it is possible to further improve the attenuation characteristics in the vicinity of the passband.
- the linear electrode 191 and via holes 801 and 811 of the resonance inductor Lr1, the linear electrode 192 and via holes 802 and 812 of the resonance inductor Lr2, and the linear electrode 193 and via hole of the resonance inductor Lr3 are also used.
- An inner layer ground electrode 160 is disposed between the linear electrodes 194 and via holes 804 and 814 of the resonant inductor Lr4 and the capacitor electrode 140 of the jump coupling capacitor.
- the capacitor electrode 140 of the jump coupling capacitor does not act on the electromagnetic coupling of the resonance inductors Lr1, Lr2, Lr3, and Lr4.
- FIG. 11 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the multilayer body 10D of the high-frequency multilayer component of the present embodiment is different from the multilayer body 10C of the high-frequency multilayer component shown in the third embodiment in the shape of the inductor of the LC resonator. Since the other configuration is the same as the laminated body 10C of the high-frequency laminated component shown in the above-described third embodiment, only the changed part will be described and the description of the same part will be omitted.
- the laminated body 10D of the present embodiment has three insulating layers on which a linear electrode for an inductor is formed.
- An insulator layer 909C is disposed on the insulator layer 908 on which the lead-out electrodes 181 and 182 are formed.
- Insulator layer 909C is formed with inductor linear electrodes 191C, 192C, 193C, 194C.
- the linear electrodes 191C, 192C, 193C, 194C have a shape extending in the direction along the end surface.
- the linear electrodes 191C, 192C, 193C, 194C are formed at a predetermined interval.
- An insulator layer 909B is disposed on the insulator layer 909C.
- Insulator layer 909B is formed with inductor linear electrodes 191B, 192B, 193B, 194B.
- the linear electrodes 191B, 192B, 193B, 194B of the insulator layer 909B are formed so as to overlap with the linear electrodes 191C, 192C, 193C, 194C of the insulator layer 909C when viewed in the stacking direction. Yes.
- Insulator layer 909A is disposed above the insulator layer 909B.
- Insulator layer 909A is formed with inductor linear electrodes 191A, 192A, 193A, 194A.
- the linear electrodes 191A, 192A, 193A, 194A of the insulator layer 909A are seen along the stacking direction with the linear electrodes 191B, 192B, 193B, 194B, 191C, 192C, 193C, 194C of the insulator layers 909B, C. In such a state, they are formed to overlap.
- the via holes 801 and 811 are formed so as to conduct the linear electrodes 191A, 191B and 191C.
- the via holes 802 and 812 are formed to conduct the linear electrodes 192A, 192B, and 192C.
- the via holes 803 and 813 are formed to conduct the linear electrodes 193A, 193B, and 193C.
- the via holes 804 and 814 are formed so as to conduct the linear electrodes 194A, 1924, and 194C.
- the resonance inductors Lr1, Lr2, Lr3, and Lr4 have a three-layer structure, and the degree of coupling between the resonance inductors is improved as compared with the case of a single-layer structure.
- the insertion loss is reduced and the pass characteristics are improved.
- FIG. 12A is a table showing the change in insertion loss according to the number of inductor layers
- FIG. 12B is an enlarged view of the pass band characteristics.
- the insertion loss and the pass characteristic can be improved by increasing the number of inductor layers. Thereby, the characteristic as a high frequency laminated component can further be improved.
- FIG. 13 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the multilayer body 10E of the high-frequency multilayer component of this embodiment is different from the multilayer body 10C of the high-frequency multilayer component shown in the third embodiment in the configuration of layers corresponding to circuit function units. Since the other configuration is the same as the laminated body 10C of the high-frequency laminated component shown in the above-described third embodiment, only the changed part will be described and the description of the same part will be omitted.
- the structures of the insulator layers 901, 911, 902, 903, 904, 905, and 906 and the uppermost insulator layer 910 are the same as those of the laminate 10C of the high-frequency laminate component of the third embodiment.
- input / output electrodes 201 and 202 are formed on the uppermost insulator layer 910.
- the input / output electrodes 201 and 202 may or may not be formed together with the above-described embodiments.
- An insulator layer 912 is disposed on the insulator layer 906 on which the inner layer ground electrode 160 is formed.
- a linear wire electrode 195 having a predetermined width for conducting the input / output electrodes 201 and 202 is formed.
- the linear electrode 195 functions as an inductor.
- FIG. 14 is an equivalent circuit diagram of a high-frequency laminated component including the laminated body 10E.
- the high-frequency laminated component including the laminated body 10 ⁇ / b> E includes a low-pass filter in which an inductor La is connected in series between input / output terminals Pio ⁇ b> 1 and Pio ⁇ b> 2 and a ground impedance adjustment circuit is connected in parallel to the inductor La. It functions as a low-pass filter LPF).
- FIG. 15 is a pass characteristic diagram of a low-pass filter made of the laminate 10E. As shown in FIG. 15, by using the structure of the present embodiment, the attenuation characteristic on the high frequency side is improved, and a low-pass filter having an excellent frequency characteristic can be configured.
- FIG. 16 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the laminated body 10F of the high-frequency laminated component of this embodiment is different from the laminated body 10E of the fifth embodiment in the configuration of layers corresponding to the circuit function unit. Since other configurations are the same as those of the multilayer body 10E of the high-frequency multilayer component shown in the fifth embodiment, only the changed portions will be described and the description of the same portions will be omitted.
- the structures of the insulator layers 901, 911, 902, 903, 904, 905, 906 and the uppermost insulator layer 910 are the same as those of the stacked body 10E.
- An insulator layer 913B is disposed on the insulator layer 906 on which the inner layer ground electrode 160 is formed.
- the insulator layer 913B is formed with a wound linear electrode 196B that is wound from the outside to the inside in the counterclockwise direction when viewed from the upper layer side.
- the input / output electrode 201 is connected to the vicinity of the outermost peripheral end of the wound linear electrode 196B.
- An insulator layer 913A is disposed on the insulator layer 913B.
- the insulator layer 913A is formed with a linear electrode 196A shaped so as to be connected to the wound linear electrode 196B when viewed from the upper layer side.
- the vicinity of one end of the linear electrode 196A is connected to the vicinity of the innermost peripheral end of the linear electrode 196B of the insulator layer 913B by a via hole 820.
- the other end of the linear electrode 196 ⁇ / b> A is connected to the input / output electrode 201.
- a low-pass filter having excellent frequency characteristics can be configured as in the fifth embodiment described above.
- FIG. 17 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the laminated body 10G of the high-frequency laminated component of the present embodiment is different from the laminated body 10E of the fifth embodiment in the configuration of layers corresponding to circuit function units. Since the other configuration is the same as that of the multilayer body 10E of the high-frequency multilayer component shown in the above-described third embodiment, only the changed part will be described and the description of the same part will be omitted.
- An insulator layer 914 is disposed on the insulator layer 906 on which the inner layer ground electrode 160 is formed.
- a T-shaped electrode 197 is formed on the insulator layer 914.
- the T-shaped electrode 197 is an electrode having a shape extending along three directions, each of which is approximately 90 ° when viewed from the upper layer.
- One of the two linear electrodes extending in parallel in the T-shaped electrode 197 is connected to the input / output electrode 201, and the other is connected to the input / output electrode 202.
- the remaining one linear electrode in the T-shaped electrode 197 is formed with a predetermined length that is not exposed on the side surface of the multilayer body, and is connected to the inner layer ground electrode 160 through the via hole 820.
- FIG. 18 is an equivalent circuit diagram of a high-frequency laminated component composed of the laminated body 10G.
- the high-frequency multilayer component including the multilayer body 10G has a series circuit of inductors Lb and Lc connected between the input / output terminals Pio1 and Pio2, and an inductor between the connection point of the inductors Lb and Lc and the ground. It functions as a T-type bandpass filter (bandpass filter BPF) to which Ld is connected.
- bandpass filter BPF bandpass filter
- FIG. 19 is a pass characteristic diagram of a bandpass filter made of the laminate 10G.
- the attenuation characteristic on the high band side of the pass band is improved, and a band pass filter having an excellent frequency characteristic can be configured.
- the inductors Lb and Lc can be formed in a straight line, a low-loss bandpass filter can be configured. At this time, the inductance between the inductors Lb and Lc can be adjusted to an optimum value by changing the connection position of the via hole 820.
- FIG. 20 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the laminated body 10H of the high-frequency laminated component of the present embodiment is different from the laminated body 10G of the seventh embodiment in the configuration of layers corresponding to the circuit function unit.
- Other configurations are the same as those of the multilayer body 10G of the high-frequency multilayer component shown in the seventh embodiment, so only the changed portions will be described and the description of the same portions will be omitted.
- the structures of the insulator layers 901, 911, 902, 903, 904, 905, 906 and the uppermost insulator layer 910 are the same as those of the stacked body 10G.
- An insulator layer 915 is disposed on the insulator layer 906 on which the inner layer ground electrode 160 is formed.
- a cross-shaped electrode 198 is formed on the insulator layer 915.
- the cross-shaped electrode 198 is an electrode having a shape (cross shape) extending along four directions, each of which is approximately 90 ° when viewed from the upper layer. Of the pair of linear electrodes extending in parallel in the cross-shaped electrode 198, one pair of linear electrodes is connected to the input / output electrodes 201 and 202. The remaining pair of linear electrodes in the cross-shaped electrode 198 are formed with a predetermined length that is not exposed on the side surface of the multilayer body so as to extend in opposite directions.
- FIG. 21 is a pass characteristic diagram of a bandpass filter made of the laminate 10H. As shown in FIG. 21, even when the structure of the present embodiment is used, the attenuation characteristic on the high band side of the pass band is improved, and a band pass filter having an excellent frequency characteristic can be configured. Further, in the present embodiment, the inductors Lb and Lc can be formed in a straight line, so that a low-loss bandpass filter can be configured. At this time, the inductance between the inductors Lb and Lc can be adjusted to an optimum value by changing the connection position of the via hole 820.
- FIG. 22 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the laminated body 10I of the high-frequency laminated component of the present embodiment is different from the laminated body 10E of the fifth embodiment in the layer configuration corresponding to the circuit function unit, and the insulator layer that constitutes the circuit function unit is the most. It is the upper layer. Since other configurations are the same as those of the multilayer body 10E of the high-frequency multilayer component shown in the fifth embodiment, only the changed portions will be described and the description of the same portions will be omitted.
- the structure of the insulator layers 901, 911, 902, 903, 904, 905, and 906 is the same as that of the stacked body 10G.
- An insulator layer 916 is disposed on the insulator layer 906 on which the inner layer ground electrode 160 is formed.
- linear lead electrodes 199A and 199B are formed with a predetermined width which are electrically connected to the input / output electrodes 201 and 202, respectively.
- a chip inductor 300 is mounted on opposite ends of the routing electrodes 199A and 199B.
- a high-frequency laminated component having excellent frequency characteristics can be configured as in the fifth embodiment described above. Furthermore, with the configuration of the present embodiment, by replacing the chip inductor 300 with another circuit element (a chip inductor or a filter element having another inductance), a high-frequency laminated component having excellent frequency characteristics having different characteristics. Can be configured. That is, a plurality of types of high-frequency laminated parts having excellent frequency characteristics can be easily formed.
- FIG. 22 other circuit elements can be mounted on the basis of the configuration of the fifth embodiment.
- FIG. 23 is a view showing another laminated structure (laminated body 10I ′) of the high-frequency laminated component of this embodiment.
- laminated body 10I ′ laminated body 10I ′
- a high-frequency laminated component having a configuration in which other similar circuit elements can be mounted may be formed. If it is a structure like FIG. 23, a circuit function part can be comprised by the combination of a mounting circuit element and a linear electrode.
- FIG. 24 is a view showing a laminated structure of the high-frequency laminated component of this embodiment.
- the laminated body may have a structure including only a ground impedance adjustment circuit.
- the multilayer body 10J of the high-frequency multilayer component of the present embodiment has a structure in which the insulator layers 907, 908, and 909 of the multilayer body 10B shown in FIG. 8 of the second embodiment are omitted.
- FIG. 25 is a view showing another laminated structure of the high-frequency laminated component of this embodiment.
- the capacitor for the LC resonator and the capacitor for the ground impedance adjustment circuit are individually formed.
- the capacitors of the LC resonators at both ends of the plurality of continuous LC resonators may be configured to be shared by the first parallel capacitor C1 and the second parallel capacitor C2 of the ground impedance adjustment circuit.
- a jump coupling capacitance may be set between the input / output terminals Pio1 and Pio2. At this time, the jump coupling capacitance can be shared by the series capacitor C12 of the ground impedance adjustment circuit. Thereby, the component of a laminated body decreases and the structure of a laminated body can be formed more simply and compactly.
- the capacitor for the LC resonator and the capacitor for the ground impedance adjustment circuit are individually formed.
- the capacitors of the LC resonators at both ends of the plurality of continuous LC resonators may be configured to be shared by the first parallel capacitor C1 and the second parallel capacitor C2 of the ground impedance adjustment circuit.
- the capacitor electrode of the LC resonator is appropriately set so as to obtain a desired capacitance.
- 10A to 10J, 10I ′, 10J ′, 10P laaminate, 901P to 905P, 901 to 916—insulator layer, 201,202—input / output electrode, 110—ground electrode, 111,112—bottom electrode for input / output 120, 160—inner layer ground electrode, 131, 132, 151, 152, 171, 172, 173, 211, 212—capacitor electrode, 181, 182-leading electrode, 191 to 194, 191A to 194A, 191B to 194B, 191C to 194C—Linear electrodes, 800, 800A, 800B, 801, 802, 803, 804, 811, 812, 813, 814, 820—via holes
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Abstract
Description
Claims (22)
- 一対の入出力端子と、
該一対の入出力端子間に接続された所定機能を実現する回路機能部と、
前記一対の入出力端子間に接続された直列キャパシタ、および、該直列キャパシタの両端とグランドとの間にそれぞれ接続された第1並列キャパシタおよび第2並列キャパシタからなるグランドインピーダンス調整回路と、を有し、
所定の電極パターンが形成された複数の絶縁体層を積層した積層体により、前記グランドインピーダンス調整回路を形成してなる高周波積層部品であって、
前記積層体の異なる絶縁体層にそれぞれ形成された内層グランド電極を少なくとも備え、
前記並列キャパシタを形成する電極は、前記内層グランド電極の間に配置されている、高周波積層部品。 - 請求項1に記載の高周波積層部品であって、
前記第1並列キャパシタおよび前記第2並列キャパシタは、互いに対向する対向電極によって構成され、
前記第1並列キャパシタおよび前記第2並列キャパシタの一方の対向電極を、前記内層グランド電極で形成し、
前記第1並列キャパシタおよび前記第2並列キャパシタの他方の対向電極は、前記内層グランド電極の間に配置されている、高周波積層部品。 - 請求項1または請求項2に記載の高周波積層部品であって、
前記直列キャパシタは互いに対向する対向電極によって構成され、
前記第1並列キャパシタおよび前記第2並列キャパシタの他方の対向電極は、前記直列キャパシタの一方の対向電極を兼用する、高周波積層部品。 - 請求項1乃至請求項3のいずれかに記載の高周波積層部品であって、
前記回路機能部は、所定の周波数通過特性を有するフィルタである、高周波積層部品。 - 請求項1乃至請求項4のいずれかに記載の高周波積層部品であって、
前記回路機能部は、前記複数の絶縁体層に形成された電極パターンからなる、高周波積層部品。 - 請求項5に記載の高周波積層部品であって、
前記回路機能部にキャパシタを含み、該キャパシタを前記グランドインピーダンス調整回路を構成する前記直列キャパシタ、第1並列キャパシタおよび前記第2並列キャパシタの少なくとも一つで兼用する、高周波積層部品。 - 請求項1乃至請求項4のいずれかに記載の高周波積層部品であって、
前記回路機能部は、前記積層体に実装される実装部品からなり、
前記積層体には、前記実装部品を実装する実装用ランドが形成されている、高周波積層部品。 - 一対の入出力端子と、
該一対の入出力端子間に接続された直列キャパシタ、および、該直列キャパシタの両端とグランドとの間にそれぞれ接続された第1並列キャパシタおよび第2並列キャパシタからなるグランドインピーダンス調整回路と、を有し、
所定の電極パターンが形成された複数の絶縁体層を積層した積層体により、前記グランドインピーダンス調整回路を形成してなる高周波積層部品であって、
前記積層体の異なる中間層にそれぞれ形成された二個の内層グランド電極を少なくとも備え、
前記直列キャパシタを形成する電極は、前記二個の内層グランド電極の間に配置されている、高周波積層部品。 - 請求項8に記載の高周波積層部品であって、
前記第1並列キャパシタおよび前記第2並列キャパシタの一方の対向電極を、前記内層グランド電極で形成し、
前記第1並列キャパシタおよび前記第2並列キャパシタの他方の対向電極は、前記二個の内層グランド電極の間に配置されている、高周波積層部品。 - 請求項8または請求項9に記載の高周波積層部品であって、
前記第1並列キャパシタおよび前記第2並列キャパシタの他方の対向電極は、前記直列キャパシタの一方の対向電極を兼用する、高周波積層部品。 - 一対の入出力端子と、
該一対の入出力端子間に高周波的に接続された複数段のLC共振器と、
前記一対の入出力端子間に直接接続される飛び結合用キャパシタと、を備え、
前記LC共振器を構成するインダクタおよびキャパシタと、前記飛び結合用キャパシタとを、所定の電極パターンが形成された複数の絶縁体層を積層した積層体により形成してなる積層型高周波フィルタであって、
前記積層体は前記絶縁体層上に形成された内層グランド電極を含み、
前記インダクタを構成する電極パターンと、前記飛び結合用キャパシタを構成する電極パターンとの間に、内層グランド電極が配設されている、積層型高周波フィルタ。 - 請求項11に記載の積層型高周波フィルタであって、
前記一対の入出力端子とグランドとの間にそれぞれ接続される入出力用キャパシタを備え、
該入出力用キャパシタを前記積層体の電極パターンにより形成し、
少なくとも前記飛び結合用キャパシタが、異なる絶縁体層に形成された内層グランド電極により挟まれて配設されている、積層型高周波フィルタ。 - 請求項12に記載の積層型高周波フィルタであって、
前記入出力用キャパシタを形成する電極パターンも、前記異なる絶縁体層に形成された内層グランド電極により挟まれて配設されている、積層型高周波フィルタ。 - 請求項11乃至請求項13のいずれかに記載の積層型高周波フィルタであって、
前記LC共振器のインダクタの電極パターンの両端には、前記LC共振器のキャパシタおよびグランドに接続するためのビアホールが形成され、インダクタは該インダクタの電極パターンと二つのビアホールとにより構成される、積層型高周波フィルタ。 - 請求項14に記載の積層型高周波フィルタであって、
各インダクタの電極パターンに接続するビアホールは、前記積層体を側面から見て略重なる位置に形成されている、積層型高周波フィルタ。 - 請求項14または請求項15に記載の積層型高周波フィルタであって、
前記インダクタを構成する電極パターンは、複数の絶縁体層に設けられ、
該複数の絶縁体層に設けられた各電極パターンは、前記二つのビアホールに並列接続されている、積層型高周波フィルタ。 - 請求項14乃至請求項16のいずれかに記載の積層型高周波フィルタであって、
前記インダクタの電極パターンが接続されるグランドは、積層体の底面とは異なる所定の絶縁体層に形成された内層グランド電極である、積層型高周波フィルタ。 - 請求項17に記載の積層型高周波フィルタであって、
前記インダクタの電極パターンが接続する内層グランド電極は、前記インダクタを構成する電極パターンと、前記飛び結合用キャパシタを構成する電極パターンとの間に配設された内層グランド電極である、積層型高周波フィルタ。 - 請求項14乃至請求項18のいずれかに記載の積層型高周波フィルタであって、
前記複数のLC共振器を構成するインダクタの内、任意の隣り合うインダクタの電極パターンの前記キャパシタと接続するビアホールの接続位置が異なる端部にある積層型高周波フィルタ。 - 請求項11乃至請求項19のいずれかに記載の積層型高周波フィルタであって、
前記複数のLC共振器を構成するインダクタの内、任意の隣り合うインダクタの電極パターンが同一の絶縁体層に形成されている、積層型高周波フィルタ。 - 請求項11乃至請求項20のいずれかに記載の積層型高周波フィルタであって、
外部グランドに接続するための外部グランド電極と、前記一対の入出力端子を形成する外部入出力端子とが、前記積層体の底面に配列形成されている、積層型高周波フィルタ。 - 請求項11乃至請求項21のいずれかに記載の積層型高周波フィルタであって、
前記一対の入出力端子間に接続された直列キャパシタ、および、該直列キャパシタの両端とグランドとの間にそれぞれ接続された第1並列キャパシタおよび第2並列キャパシタからなるグランドインピーダンス調整回路と、を備え、
前記直列キャパシタは、前記飛び結合用キャパシタを構成する電極パターンと兼用されている、積層型高周波フィルタ。
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US10110191B2 (en) | 2018-10-23 |
US9184720B2 (en) | 2015-11-10 |
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US20160020746A1 (en) | 2016-01-21 |
TWI489775B (zh) | 2015-06-21 |
JP5609968B2 (ja) | 2014-10-22 |
CN102549690B (zh) | 2014-10-29 |
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CN102549690A (zh) | 2012-07-04 |
US20120319801A1 (en) | 2012-12-20 |
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