CN105098317A - Antenna device and electronic equipment - Google Patents
Antenna device and electronic equipment Download PDFInfo
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- CN105098317A CN105098317A CN201510325007.5A CN201510325007A CN105098317A CN 105098317 A CN105098317 A CN 105098317A CN 201510325007 A CN201510325007 A CN 201510325007A CN 105098317 A CN105098317 A CN 105098317A
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Abstract
The invention discloses an antenna device and electronic equipment. The antenna device comprises a first antenna unit, a switch unit and a second antenna unit, wherein the first antenna unit is connected with a transceiver through a feeder line and is used for receiving signals from the transceiver; the switch unit has a closed state and a disconnected state, and is provided with a first end and a second end, wherein the first end is a free end and can be switched between grounding and ungrounding, and the second end is a fixed end; one end of the second antenna unit is grounded, and the other end of the second antenna unit is connected with the second end of the switch unit, wherein coupled feeding is carried out on the second antenna unit through stimulation of the first antenna unit; when the switch unit is at the disconnected state, the first antenna unit and the second antenna unit form a first combination, and the working band is a first band; when the switch unit is at the closed state, the first antenna unit and the second antenna form a second combination, the working band is a second band; and the first band is different from the second band.
Description
Technical field
The present invention relates to the technical field of radio communication, more particularly, the present invention relates to the technical field of Antenna Design.
Background technology
The extensive universal huge explosion having driven mobile Internet apply of the intelligent terminal such as smart mobile phone, flat board, 4G/LTE and the large scale deployment of WLAN hot spot also make mobile Internet application no longer be confined to common web page browsing to share with picture.HD video, 3D video, virtual reality are close to extensive commercialization more and more, and these also have stimulated the further lifting of network capacity while being applied in and bringing user's audiovisual grand banquet.
Along with the development of the wireless technologys such as LTE, WLAN, mobile communication subscriber quantity increases rapidly, frequency spectrum resource becomes more and more nervous, cause the communication standard of integrated multiple different frequency range while of a mobile terminal needs, therefore, the frequency range that on mobile terminal, demand is supported gets more and more, and correspondingly, also gets more and more to the number of antennas needed.
In addition, along with the development of mobile communication technology, various electronic equipment all to miniaturized with microminiaturized future development, antenna, as the indispensable part of radio subsystem, also needs the future development to miniaturization in the nature of things.Various wireless device such as mobile phone, palmtop PC, panel computer etc. are used at large, in large quantities on the one hand, therefore wish to obtain little, lightweight, the low-cost antenna of volume; Electronic system is complicated now on the other hand, and built-in module is various, and design space is compact, more requires antenna miniaturization.In brief, mobile terminal is also pursuing higher energy product ratio and thinner thickness, therefore less to the space that antenna is reserved.
Therefore, how to eliminate number of antennas increase and antenna headspace reduce between contradiction be current problem demanding prompt solution in this area.
Summary of the invention
In view of above situation, expect to provide the antenna structure that can realize more broadband, more multiband with less volume.
According to an aspect of the present invention, provide a kind of antenna assembly, comprising:
First antenna element, is connected with transceiver via feed line, for receiving the signal from described transceiver;
Switch element, has closure state and off-state, and has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end;
Second antenna element, one end ground connection, the other end is connected with the second end of described switch element,
Wherein, by the excitation of described first antenna element, couple feed is carried out to described second antenna element, and
Wherein when described switch element is in off-state, described first antenna element and described second antenna element are the first combination, working band is the first frequency band, and when described switch element is in closure state, described first antenna element and described second antenna element are the second combination, working band is the second frequency band, and described first frequency band is different from described second frequency band.
Preferably, according in the antenna assembly of the embodiment of the present invention, described second antenna element is configured to place near described first antenna element, and the length of described second antenna element is greater than the length of described first antenna element.
Preferably, according in the antenna assembly of the embodiment of the present invention, described first antenna element is monopole antenna, when described switch element is in off-state, described second antenna element is monopole antenna, and when described switch element is in closure state, described second antenna element and described switch element are combined into loop aerial, and described loop aerial is around described first antenna element.
Preferably, according in the antenna assembly of the embodiment of the present invention, described first frequency band comprises the first sub-band and the second sub-band, and the frequency of described first sub-band is lower than the frequency of described second sub-band, the frequency of described second frequency band higher than described first sub-band frequency and lower than the frequency of described second sub-band.
According to a further aspect in the invention, provide a kind of electronic equipment, comprising:
Processing unit, for generation of signal to be sent;
Transceiver, for receiving produced signal to be sent to be sent, and is converted to radiofrequency signal by signal to be sent; And
Antenna assembly, for radiofrequency signal is radiated the external world,
Wherein said antenna assembly comprises:
First antenna element, is connected with transceiver via feed line, for receiving the signal from described transceiver;
Switch element, has closure state and off-state, and has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end;
Second antenna element, one end ground connection, the other end is connected with the second end of described switch element,
Wherein, by the excitation of described first antenna element, couple feed is carried out to described second antenna element, and
Wherein when described switch element is in off-state, described first antenna element and described second antenna element are the first combination, working band is the first frequency band, and when described switch element is in closure state, described first antenna element and described second antenna element are the second combination, working band is the second frequency band, and described first frequency band is different from described second frequency band.
Preferably, according in the electronic equipment of the embodiment of the present invention, described second antenna element is configured to place near described first antenna element, and the length of described second antenna element is greater than the length of described first antenna element.
Preferably, according in the electronic equipment of the embodiment of the present invention, described first antenna element is monopole antenna, when described switch element is in off-state, described second antenna element is monopole antenna, and when described switch element is in closure state, described second antenna element and described switch element are combined into loop aerial, and described loop aerial is around described first antenna element.
Preferably, according in the electronic equipment of the embodiment of the present invention, described first frequency band comprises the first sub-band and the second sub-band, and the frequency of described first sub-band is lower than the frequency of described second sub-band, the frequency of described second frequency band higher than described first sub-band frequency and lower than the frequency of described second sub-band.
By according to the antenna assembly of the embodiment of the present invention and electronic equipment, the antenna of better performances can be designed in a limited space.Specifically, by simple mode, namely a cabling of control antenna whether ground connection just can realize the switching of frequency in broadband range, antenna structure is simple, and processing cost is low, and effectively can be applicable to becket or metal battery bonnet equipment.
Accompanying drawing explanation
Fig. 1 shows the structural representation of each parts of the antenna assembly according to the first embodiment of the present invention;
Fig. 2 shows the structural representation of each parts of antenna assembly according to a second embodiment of the present invention; And
Fig. 3 shows the functional block diagram of the configuration of the electronic equipment according to the embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings of the present invention each is preferred embodiment described.There is provided the description referring to accompanying drawing, to help the understanding to the example embodiment of the present invention limited by claim and equivalent thereof.It comprises the various details helping to understand, but they can only be counted as exemplary.Therefore, those skilled in the art will recognize that, can make various changes and modifications execution mode described herein, and do not depart from the scope of the present invention and spirit.And, in order to make specification clearly succinct, will the detailed description to well known function and structure be omitted.
Antenna is the requisite assembly of any radio system, and its function is radiation or receives radio wave.It changes the radio wave of free space into the guided wave in transmitter, or does contrary conversion, the radio wave of free space is converted to guided wave and passes to receiver, thus realizes the transmission of radio signal.Antenna is different with transmission line, two ends, transmission line left and right are all closed circuits, and one end of antenna is closed circuit (emission source), and one end is free space (load), but it is transmission and conversion of electromagnetic energy in essence, is a kind of special Energy Transfer form.
First, the general introduction of antenna assembly will provided according to design always of the present invention.Design always of the present invention is, realizes more working bands by the combining form switched between multiple (such as, two) antenna element.Specifically, for two antenna elements, antenna assembly according to the present invention comprises: the first antenna element, switch element and the second antenna element.
First antenna element, is connected with transceiver via feed line, for receiving the signal from described transceiver.
Switch element has closure state and off-state, and has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end.
One end ground connection of the second antenna element, the other end is connected with the second end of described switch element.
Carry out couple feed by the excitation of described first antenna element to described second antenna element, in general, all there is electromagnetic coupled with antenna in any metal existed around antenna or non-metallic device.This coupling effect of antenna can be utilized to improve the radiance of antenna.
When described switch element is in off-state, described first antenna element and described second antenna element are the first combination, working band is the first frequency band, and when described switch element is in closure state, described first antenna element and described second antenna element are the second combination, working band is the second frequency band, and described first frequency band is different from described second frequency band.
In brief, by the movable end of control switch unit whether ground connection just can realize the switching of antenna frequencies.
Next, with reference to Fig. 1, the antenna assembly according to the first embodiment of the present invention is described.As shown in Figure 1, antenna assembly 100 comprises: the first antenna element 101, second antenna element 102 and switch element 103.
As noted before, the first antenna element 101 is connected with transceiver (not shown) via feed line, for receiving the signal from described transceiver.More particularly, one end of the first antenna element 101 is connected with transceiver, and the other end is unsettled.As shown in Figure 1, the first antenna element 101 is one in the monopole antenna (Monopole) of L-type.Monopole antenna or be called upright antenna, is a kind of antenna perpendicular to bottom surface or conductive plane erection, generally forms by one piece of metal floor with perpendicular to the radiant body sheet metal of metal floor.Due to the omnidirectional radiation characteristic of monopole antenna classics, being therefore widely used antenna in radio communication handheld terminal, is also a kind of more common design form of built-in antenna of mobile phone.
The height (being called electrical height) of monopole antenna distance bottom surface is the key factor determining beamwidth of antenna performance.If the electrical height of antenna is enhanced, so radiation impedance can increase, and Loss impedance can decline, and input capacitive reactance also reduces.But generally speaking, be limited to the size of equipment oneself height and built-in space, the electrical height of monopole antenna is often far smaller than 1/4 λ, and has been difficult to significantly improve.But when the radiant body shape of monopole antenna occurs necessarily to change in plane, its input impedance and standing wave bandwidth can both obtain raising to a certain extent, and significantly changing does not appear in its antenna pattern.Making full use of this feature of monopole antenna, in order to realize the miniaturization of equipment built-in aerial, making antenna take less regional space, as shown in Figure 1, monopole antenna is bent into such as L shape.Certainly, in FIG only to bend the example of monopole antenna as the first antenna element 101 of l-shaped, but the present invention is not limited to this.Such as, monopole antenna can also be bent into any other shape (e.g., F shape), or monopole antenna also can be designed to rectangular patch structure.
Switch element 103 has closure state and off-state.Further, switch element 103 has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end.
When first end and ground connection, switch element 103 is in closure state.When first end and earth-free, time namely unsettled, switch element 103 is in off-state.Note, in FIG, the structure due to switch element 103 is known in the art, therefore schematically show only the position of switch element 103 and its structure is not shown.
As shown in Figure 1, to be one be the second antenna element 102
the antenna element of shape, one end ground connection, the other end is connected with the second end of described switch element.When described switch element 103 is in off-state, when namely described first end is earth-free, the second antenna element 102 does not form closed-loop path, namely should think that it is a monopole antenna.When described switch element 103 is in closure state, namely during described first end ground connection, the second antenna element 102 forms closed-loop path with described switch element 103, namely should think that it is a loop aerial.Further, described loop aerial is around described first antenna element 101.
Loop aerial (LOOPantenna) is that a metallic conductor is coiled into certain shape, using the two ends of conductor as the irradiation structure of feed end.Loop aerial is a kind of self-balancing antenna, and its resonance mainly relies on annular perimeter suitable with resonance wavelength.It both can see the folded monopole sub antenna be operated under 2 × 1/4 λ wavelength and 2 × 3/4 λ wavelength, two unbalanced mode as, also can see the folded doublet under 2 × 1/2 λ wavelength balance patterns that are operated in as, therefore single circular path can produce three modes of resonance.In addition by suitable tunable technology, more can inspire and wake the extra work pattern of antenna under 2 λ wavelength up.The advantage of multi-resonant pattern makes loop aerial be very easy to cover multi-frequency band mobile communication standard.Meanwhile, the surface current path that loop aerial excites is a closed loop version, this makes the degree of coupling between antenna and floor more much smaller than other types antenna, and thus loop aerial is very suitable for working under the complex environments such as interference and dissipation.
Illustrate only the second antenna element 102 in Fig. 1 is
the example of shape, but the present invention is not limited to this.Such as, the second antenna element 102 can also be other shapes that can close arbitrarily, as circle, ellipse, triangle etc.
By the excitation of described first antenna element 101, couple feed is carried out to described second antenna element 102.
In the present invention, in order to save space and improve coupling effect, described second antenna element 102 is configured to place near described first antenna element 101, and the length of described second antenna element 102 is greater than the length of described first antenna element 101.
Generally speaking, the length of antenna is longer, then its resonance frequency is lower.Otherwise the length of antenna is shorter, then its resonance frequency is higher.Under the antenna structure configuration shown in Fig. 1, described first frequency band comprises the first sub-band and the second sub-band, and the frequency of described first sub-band is lower than the frequency of described second sub-band, the frequency of described second frequency band higher than described first sub-band frequency and lower than the frequency of described second sub-band.Certainly described in another embodiment of the application, the frequency of the second frequency band and the frequency of the second sub-band partially overlap, but on the whole lower than the frequency of the second sub-band.
Specifically, when switch element 103 is in off-state, the operating state of the first antenna element 101 and the second antenna element 102 is the combination of two monopole antennas.First antenna element 101 directly carries out feed to the second antenna element 102, and the first antenna cell operation is at high frequency.What the second antenna element 102 relied on the first antenna element 101 is coupled into row energization, is operated in low frequency.That is, when switch element 103 is in off-state, the antenna assembly shown in Fig. 1 can be operated in a low-frequency range (e.g., GSM850/900) and a high band (e.g., LTEB38 ~ 41).In fact, low-frequency range is contributed by the second antenna element that length is longer completely, and high band is by two antenna element joint contribution.When switch element 103 is in closure state, the operating state of the first antenna element 101 and the second antenna element 102 is the combination of a monopole antenna and a loop aerial.Equally, the first antenna element 101 directly carries out feed to the second antenna element 102.By intercoupling between the first antenna element 101 and the second antenna element 102, the antenna assembly shown in Fig. 1 is operated in Mid Frequency (e.g., GSM1800/1900).
The embodiment adopting two antenna elements has been shown in Fig. 1.But the present invention is not limited to this.The quantity of antenna element is not limited to two certainly.
Next, with reference to Fig. 2 description antenna assembly according to a second embodiment of the present invention.Different from the first embodiment, as shown in Figure 2, antenna assembly 200 comprises three antenna elements.Particularly, antenna assembly 200 comprises: the first antenna element 201, second antenna element 202, third antenna unit 203 and switch element 204.
As noted before, the first antenna element 201 is connected with transceiver (not shown) via feed line, for receiving the signal from described transceiver.As shown in Figure 2, the first antenna element 201 is one in the monopole antenna of L-type.
With the switch element 103 in the first embodiment similarly, switch element 204 has closure state and off-state.Further, switch element 204 has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end.
When first end and ground connection, switch element 204 is in closure state.When first end and earth-free, time namely unsettled, switch element 204 is in off-state.Note, in fig. 2, similarly, the structure due to switch element 204 is known in the art, therefore schematically show only the position of switch element 103 and its structure is not shown.
As shown in Figure 2, with the second antenna element 102 in the first embodiment similarly, to be one be the second antenna element 202
the antenna element of shape, one end ground connection, the other end is connected with the second end of described switch element.When described switch element 204 is in off-state, when namely described first end is earth-free, the second antenna element 202 does not form closed-loop path, namely should think that it is a monopole antenna.When described switch element 204 is in closure state, namely during described first end ground connection, the second antenna element 202 forms closed-loop path with described switch element 204, namely should think that it is a loop aerial.Further, described loop aerial is around described first antenna element 201.
In addition, as shown in Figure 2, different from the first embodiment, antenna assembly 200 also comprises third antenna unit 203 further.In fig. 2, third antenna unit 203 and the first antenna element 201 similar, be similarly one in the monopole antenna of L-type.But, to be connected with transceiver unlike, third antenna unit 203 ground connection via feed line with the first antenna element 201.More particularly, one end ground connection of third antenna unit 203, the other end is unsettled.
In addition, the length of third antenna unit 203 is different from the length of the first antenna element 201.Such as, the length of third antenna unit 203 is longer than the length of the first antenna element 201.Further, the second antenna element 202 is by third antenna unit 203 around therein, and therefore the length of the second antenna element 202 is longer than the length of third antenna unit 203.
When switch element 204 is in off-state, the operating state of the first antenna element 201, second antenna element 202 and third antenna unit 203 is the combination of three monopole antennas.First antenna element 201 directly carries out feed to the second antenna element 202 and third antenna unit 203, and the first antenna element 201 is operated in high frequency.What the second antenna element 202 relied on the first antenna element 101 is coupled into row energization, is operated in low frequency.In addition, what third antenna unit 203 relied on the first antenna element 101 is coupled into row energization, is operated in the high frequency more lower slightly than the first antenna element 201.That is, when switch element 103 is in off-state, the antenna assembly shown in Fig. 2 can be operated in a low-frequency range and a wider high band.In fact, low-frequency range is contributed by the second antenna element that length is longer completely, and high band is by three antenna element joint contribution.When switch element 204 is in closure state, the operating state of the first antenna element 201, second antenna element 202 and third antenna unit 203 is the combination of two monopole antennas and a loop aerial.Equally, the first antenna element 201 directly carries out feed to the second antenna element 202 and third antenna unit 203.By intercoupling between the first antenna element 201, second antenna element 202 and third antenna unit 203, the antenna assembly shown in Fig. 2 is operated in wider Mid Frequency.
Thus, by increasing third antenna unit 203, compared with the first embodiment, the working frequency range being different from the first antenna element and the second antenna element can be further expanded.
Certainly, in fig. 2 only using the monopole antenna bending l-shaped as the example of the first antenna element 201 and third antenna unit 203, but the present invention is not limited to this.Such as, monopole antenna can also be bent into any other shape (e.g., F shape), or monopole antenna also can be designed to rectangular patch structure.In addition, illustrate only the second antenna element 202 in Fig. 2 is
the example of shape, but the present invention is not limited to this.Such as, the second antenna element 202 can also be other shapes that can close arbitrarily, as circle, ellipse, triangle etc.
The embodiment that loop aerial and monopole antenna combine has been shown in above Fig. 1 and Fig. 2, but the present invention is not limited to this.Except 3 in 2 in Fig. 1 and Fig. 2, the quantity of antenna element can also be more.And, those skilled in the art is under the guidance of design always of the present invention, the combination can also finding out antenna element also can be any other the possible combination outside loop aerial, monopole antenna, and any other possible combination also can be applied to the present invention similarly, and should comprise within the scope of the invention.Such as, as the execution mode that another kind is possible, on the basis of the antenna structure shown in Fig. 1 or Fig. 2, a paster antenna can also be set on the second antenna element further as the 3rd or the 4th antenna element, with further frequency band spreading and enhancing spectral characteristic.
In addition, in the example of fig. 1 and 2, illustrate only the situation comprising a switch element.But the present invention is not limited to this.Such as, when there is three or more antenna elements, two or more switch element can be there is state switching is carried out to corresponding antenna element.
Hereinbefore, see figures.1.and.2 the antenna assembly described according to various embodiments of the present invention concrete structure configuration.Described antenna assembly can be applied to various types of electronic equipment, as mobile phone, panel computer etc.Next, the concrete configuration of the electronic equipment applied according to antenna assembly of the present invention is described with reference to Fig. 3.
As shown in Figure 3, electronic equipment 300 comprises processing unit 301, transceiver 302 and antenna assembly 303.
Processing unit 301 is for generation of signal to be sent.Here signal to be sent is generally the signal of telecommunication.
Signal to be sent for receiving produced signal to be sent to be sent, and is converted to radiofrequency signal by transceiver 302.
Antenna assembly 303 receives the radiofrequency signal from transceiver 302, and radiofrequency signal is radiated the external world.
Certainly, these are only the process of transmitting.For electronic equipment 300, also there is collection of letters process.Specifically, antenna assembly 303 can also receive the radiofrequency signal from the external world.Then, antenna assembly 303 sends the radiofrequency signal received to transceiver 302.Next, radiofrequency signal is converted to the signal of telecommunication and is supplied to processing unit 301 and carries out further analyzing and processing by transceiver 302.
As noted before, described antenna assembly 303 comprises: the first antenna element, is connected with transceiver via feed line, for receiving the signal from described transceiver, switch element, has closure state and off-state, and has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end, second antenna element, one end ground connection, the other end is connected with the second end of described switch element, wherein, by the excitation of described first antenna element, couple feed is carried out to described second antenna element, and wherein when described switch element is in off-state, described first antenna element and described second antenna element are the first combination, working band is the first frequency band, and when described switch element is in closure state, described first antenna element and described second antenna element are the second combination, working band is the second frequency band, described first frequency band is different from described second frequency band.
Because the concrete structure of antenna assembly 303 is described in detail hereinbefore, each the concrete parts therefore in the structured flowchart of Fig. 3 and included by not shown antenna assembly 303.Further, because the detailed description about each concrete parts included in antenna assembly 303 is identical with the description of each concrete parts that the antenna assembly that describes of above seeing figures.1.and.2 comprises, therefore in order to avoid for the purpose of redundancy, repeat no more here.
Up to now, describe referring to figs. 1 through Fig. 3 the electronic equipment be applied to according to antenna assembly and the antenna assembly of the embodiment of the present invention in detail.By according to the antenna assembly of the embodiment of the present invention and electronic equipment, the antenna of better performances can be designed in a limited space.Specifically, by simple mode, namely a cabling of control antenna whether ground connection just can realize the switching of frequency in broadband range, antenna structure is simple, and processing cost is low, and effectively can be applicable to becket or metal battery bonnet equipment.
It should be noted that, in this manual, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Finally, also it should be noted that, above-mentioned a series of process not only comprises with the order described here temporally process that performs of sequence, and comprises process that is parallel or that perform respectively instead of in chronological order.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required hardware platform by software and realize, and can certainly all be implemented by software.Based on such understanding, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Above to invention has been detailed introduction, applying specific case herein and setting forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. an antenna assembly, comprising:
First antenna element, is connected with transceiver via feed line, for receiving the signal from described transceiver;
Switch element, has closure state and off-state, and has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end;
Second antenna element, one end ground connection, the other end is connected with the second end of described switch element,
Wherein, by the excitation of described first antenna element, couple feed is carried out to described second antenna element, and
Wherein when described switch element is in off-state, described first antenna element and described second antenna element are the first combination, working band is the first frequency band, and when described switch element is in closure state, described first antenna element and described second antenna element are the second combination, working band is the second frequency band, and described first frequency band is different from described second frequency band.
2. antenna assembly according to claim 1, wherein said second antenna element is configured to place near described first antenna element, and the length of described second antenna element is greater than the length of described first antenna element.
3. antenna assembly according to claim 1 and 2, wherein said first antenna element is monopole antenna, when described switch element is in off-state, described second antenna element is monopole antenna, and when described switch element is in closure state, described second antenna element and described switch element are combined into loop aerial, and described loop aerial is around described first antenna element.
4. antenna assembly according to claim 3, described first frequency band comprises the first sub-band and the second sub-band, and the frequency of described first sub-band is lower than the frequency of described second sub-band, the frequency of described second frequency band higher than described first sub-band frequency and lower than the frequency of described second sub-band.
5. an electronic equipment, comprising:
Processing unit, for generation of signal to be sent;
Transceiver, for receiving produced signal to be sent to be sent, and is converted to radiofrequency signal by signal to be sent; And
Antenna assembly, for radiofrequency signal is radiated the external world,
Wherein said antenna assembly comprises:
First antenna element, is connected with transceiver via feed line, for receiving the signal from described transceiver;
Switch element, has closure state and off-state, and has first end and the second end, wherein said first end be movable end and can ground connection and earth-free between switch, described second end is stiff end;
Second antenna element, one end ground connection, the other end is connected with the second end of described switch element,
Wherein, by the excitation of described first antenna element, couple feed is carried out to described second antenna element, and
Wherein when described switch element is in off-state, described first antenna element and described second antenna element are the first combination, working band is the first frequency band, and when described switch element is in closure state, described first antenna element and described second antenna element are the second combination, working band is the second frequency band, and described first frequency band is different from described second frequency band.
6. electronic equipment according to claim 5, wherein said second antenna element is configured to place near described first antenna element, and the length of described second antenna element is greater than the length of described first antenna element.
7. the electronic equipment according to claim 5 or 6, wherein said first antenna element is monopole antenna, when described switch element is in off-state, described second antenna element is monopole antenna, and when described switch element is in closure state, described second antenna element and described switch element are combined into loop aerial, and described loop aerial is around described first antenna element.
8. electronic equipment according to claim 7, described first frequency band comprises the first sub-band and the second sub-band, and the frequency of described first sub-band is lower than the frequency of described second sub-band, the frequency of described second frequency band higher than described first sub-band frequency and lower than the frequency of described second sub-band.
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| CN201510325007.5A CN105098317A (en) | 2015-06-12 | 2015-06-12 | Antenna device and electronic equipment |
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| CN201510325007.5A CN105098317A (en) | 2015-06-12 | 2015-06-12 | Antenna device and electronic equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106848607A (en) * | 2017-01-11 | 2017-06-13 | 瑞声科技（南京）有限公司 | A kind of antenna assembly |
| CN107369901A (en) * | 2017-09-08 | 2017-11-21 | 联想(北京)有限公司 | A kind of antenna assembly and communication electronic equipment |
| CN107887689A (en) * | 2016-09-30 | 2018-04-06 | 北京小米移动软件有限公司 | Terminal shell and terminal |
| CN108306660A (en) * | 2017-01-11 | 2018-07-20 | 佳能株式会社 | Wireless communication system |
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| CN103384029A (en) * | 2012-05-04 | 2013-11-06 | 国巨股份有限公司 | Antenna with connecting circuit |
| CN104103904A (en) * | 2013-04-15 | 2014-10-15 | 广达电脑股份有限公司 | Adjustable multi-frequency antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887689A (en) * | 2016-09-30 | 2018-04-06 | 北京小米移动软件有限公司 | Terminal shell and terminal |
| CN106848607A (en) * | 2017-01-11 | 2017-06-13 | 瑞声科技（南京）有限公司 | A kind of antenna assembly |
| CN108306660A (en) * | 2017-01-11 | 2018-07-20 | 佳能株式会社 | Wireless communication system |
| CN108306660B (en) * | 2017-01-11 | 2022-06-24 | 佳能株式会社 | Wireless communication system |
| CN107369901A (en) * | 2017-09-08 | 2017-11-21 | 联想(北京)有限公司 | A kind of antenna assembly and communication electronic equipment |
| CN108649348A (en) * | 2018-05-09 | 2018-10-12 | 青岛海信移动通信技术股份有限公司 | Terminal device |
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