CN207250709U - A kind of multi-layer porcelain antenna and corresponding CPW plates and double frequency Loop antennas - Google Patents

Abstract

It the utility model is related to microwave communication system, more particularly to a kind of miniaturization PIFI ceramic antennas.A kind of multi-layer porcelain antenna, including：Two input and output bottom external electrodes are exposed outside antenna, and are respectively at the bottom surface at the both ends of ceramic antenna；Several insulating medium layers being laminated in the stacking direction by plurality of layers diaphragm；Two square type coupled capacitor pieces are located at two insulating medium layers respectively, first square type coupled capacitor piece is more than the second square type coupled capacitor piece, first square type coupled capacitor piece and the second square type coupled capacitor piece upper-lower overlapping are distributed to form an equivalent capacity, hole post is crossed by one be connected respectively to the first bottom input output electrode and the second bottom input output electrode, inductance capacitance series resonance is formed, produces a resonance frequency point.By structure optimization of the interior electrode on different flaky pottery dielectric layers, the PIFI ceramic antennas of different electrical properties can be designed in identical antenna volume, and can must effectively improve uniformity, the reliability of product.

Description

A kind of multi-layer porcelain antenna and corresponding CPW plates and double frequency Loop antennas

Technical field

It the utility model is related to microwave communication system, more particularly to a kind of miniaturization PIFI ceramic antennas.

Background technology

Existing multi-layer porcelain antenna, is essentially all omnidirectional antenna (application number CN200710067942, the public affairs of Wound-rotor type The number of opening：CN101034766A), the omnidirectional's wire antenna being formed by stacking using mutiple antennas radiation elementary cell, this is simple in structure, Omni-directional is good, but the type antenna can only be placed on the preferable aerial radiation of corner clearance zone competence exertion and the reception of module Performance, and its conformity of production is poor, and some less bluetooth module compact in design, the clearance zone that can be reserved are smaller, and sometimes Can only be in edge reserved part antenna headroom area, and cannot be reserved in edge, the omnidirectional antenna of Wound-rotor type is just uncomfortable at this time With.

The content of the invention

To solve the above problems, a purpose of the utility model is to provide a kind of multi-layer porcelain antenna, the utility model Second purpose be to provide the CPW plates being adapted with the ceramic antenna, the 3rd purpose of the utility model is to provide The double frequency Loop antennas that a kind of multi-layer porcelain antenna and pcb board combine.

In order to realize first above-mentioned purpose, the utility model employs following technical solution：

A kind of multi-layer porcelain antenna, the ceramic antenna include：

First bottom input output electrode and the second bottom input output electrode, two input and output bottom external electrodes are exposed Outside antenna, and it is respectively at the bottom surface at the both ends of ceramic antenna；

Insulative dielectric stack body, including several dielectrics being laminated in the stacking direction by plurality of layers diaphragm Layer；

First square type coupled capacitor piece and the second square type coupled capacitor piece, two square type coupled capacitor pieces are located at two respectively Insulating medium layer, the first square type coupled capacitor piece are more than the second square type coupled capacitor piece, the first square type coupled capacitor piece and second Square type coupled capacitor piece upper-lower overlapping is distributed to form an equivalent capacity, the first square type coupled capacitor piece and the coupling of the second square type Capacitance sheet crosses hole post by one and is connected respectively to the first bottom input output electrode and the second bottom input output electrode, shape Into inductance capacitance series resonance, a resonance frequency point is produced.

As a further improvement, the insulative dielectric stack body is made of 3 layers of insulating medium layer, it is respectively from top to bottom First insulating medium layer, the second insulating medium layer and the 3rd insulating medium layer, two bottom input output external electrodes are located at the 3rd Insulating medium layer bottom, the first square type coupled capacitor piece are located at the top of the second insulating medium layer, the second square type coupled capacitor piece Positioned at the top of the 3rd insulating medium layer.

In order to realize second above-mentioned purpose, the utility model employs following technical solution：

The CPW plates being adapted with the ceramic antenna, the CPW plates include：

First ground plane and the second ground plane, two ground planes L-shaped one side for being arranged on CPW plates respectively, connect at two Interconnected antenna is formed between ground and places vacancy and conducting wire setting passage, the first ground plane and the second ground plane are set respectively It is equipped with connection raised line and extends to antenna placement vacancy；

Input and output conducting wire, input and output conducting wire set passage to set along conducting wire, and one end extends to antenna and places vacancy；

Full ground plane, full ground plane are arranged on the other one side of CPW plates, the first ground plane and the second ground plane and full ground connection It is connected respectively by metallization VIA between face.

As a further improvement, the impedance of the input and output conducting wire is 50 ohm, full ground plane is metal copper foil.

In order to realize the 3rd above-mentioned purpose, the utility model employs following technical solution：

The double frequency Loop antennas that a kind of multi-layer porcelain antenna and pcb board combine, double frequency Loop antennas include described more Layer ceramic antenna and the CPW plates.

The capacitance sheet of vertical distribution is composed about two layers of the use of the utility model, is passed through and is crossed hole post and bottom electrode Be connected, it can be achieved that WIFI or Bluetooth band signal reception and transmission, conformity of production is good, and it is affected by environment relatively It is small, and bandwidth is larger.The utility model can design the PIFI ceramic antennas of different electrical properties in identical antenna volume, and It can must effectively improve uniformity, the reliability of product.

Brief description of the drawings

Fig. 1 is the decomposition diagram of the multi-layer porcelain antenna of one preferred embodiment of the utility model；

Fig. 2 is the test pcb board schematic diagram of the utility model multi-layer porcelain antenna；

Fig. 3 is the equivalent circuit diagram of multi-layer porcelain antenna shown in Fig. 1.

Embodiment

The example implemented according to this patent is described in detail with reference to the accompanying drawings.

A kind of multi-layer porcelain antenna as shown in Figure 1, the ceramic antenna include：

First bottom input output electrode 101 and the second bottom input output electrode 1011, outside two input and output bottoms Electrode is exposed outside antenna, and is respectively at the bottom surface at the both ends of ceramic antenna；

Insulative dielectric stack body, insulative dielectric stack body are made of 3 layers of insulating medium layer, are first exhausted respectively from top to bottom Edge dielectric layer 106, the second insulating medium layer 104 and the 3rd insulating medium layer 102, two bottom inputs output external electrodes are positioned at the Three insulating medium layers, 102 bottom；

First square type coupled capacitor piece 105 and the second square type coupled capacitor piece 103, the first square type coupled capacitor piece 105 In the top of the second insulating medium layer 104, the second square type coupled capacitor piece 103 is located at the top of the 3rd insulating medium layer 102.The One square type coupled capacitor piece 105 is more than the second square type coupled capacitor piece 103, the first square type coupled capacitor piece 105 and the second square type 103 upper-lower overlapping of coupled capacitor piece is distributed to form an equivalent capacity, the first square type coupled capacitor piece 105 and the second square type coupling Closing capacitance sheet 103, by one, hole post is connected respectively to the first bottom input output electrode 101 excessively and the second bottom input is defeated Go out electrode 1011, form inductance capacitance series resonance, produce a resonance frequency point.Hole post is crossed for two to be equivalent in radio circuit L1, L2 of Fig. 3.

In Fig. 1, the diagonal line hatches part with oblique line is metallic conductor, such as Ag, Cu, Au or other metallic compound etc. Material, is formed by printing, evaporating the technologies such as coating.

The CPW plates being adapted with above-mentioned ceramic antenna, the CPW plates include：

First ground plane 302 and the second ground plane 305, two ground planes L-shaped one side for being arranged on CPW plates respectively, Interconnected antenna is formed between two ground planes and places vacancy 301 and conducting wire setting passage, the first ground plane 302 and second Ground plane 305 is respectively arranged with connection raised line and extends to antenna placement vacancy 301；

Input and output conducting wire 304, the impedance of input and output conducting wire 304 is 50 ohm, and input and output conducting wire 304 is set along conducting wire Passage setting is put, and one end extends to antenna and places vacancy 301；

Full ground plane, full ground plane are arranged on the other one side of CPW plates, and full ground plane is metal copper foil.First ground plane 302 and second are connected by metallization VIA 303 between ground plane 305 and full ground plane respectively.

The double frequency Loop antennas that a kind of multi-layer porcelain antenna and pcb board combine, double frequency Loop antennas include described more Layer ceramic antenna and the CPW plates, the antenna that multi-layer porcelain antenna is arranged on CPW plates place vacancy 301.

Claims (5)

1. a kind of multi-layer porcelain antenna, it is characterised in that the ceramic antenna includes：

First bottom input output electrode (101) and the second bottom input output electrode (1011), outside two input and output bottoms Electrode is exposed outside antenna, and is respectively at the bottom surface at the both ends of ceramic antenna；

Insulative dielectric stack body, including several insulating medium layers being laminated in the stacking direction by plurality of layers diaphragm；

First square type coupled capacitor piece (105) and the second square type coupled capacitor piece (103), two square type coupled capacitor pieces distinguish position In two insulating medium layers, the first square type coupled capacitor piece (105) is more than the second square type coupled capacitor piece (103), the first square type Coupled capacitor piece (105) and second square type coupled capacitor piece (103) upper-lower overlapping are distributed to form an equivalent capacity, the first square Type coupled capacitor piece (105) and the second square type coupled capacitor piece (103) cross hole post by one and are connected respectively to the first bottom Input and output electrode (101) and the second bottom input output electrode (1011), form inductance capacitance series resonance, and generation one is humorous Shake frequency point.

2. a kind of multi-layer porcelain antenna according to claim 1, it is characterised in that insulative dielectric stack body is by 3 layers of insulation Dielectric layer forms, and is that the first insulating medium layer (106), the second insulating medium layer (104) and the 3rd insulation are situated between respectively from top to bottom Matter layer (102), two bottom input output external electrodes are located at the 3rd insulating medium layer (102) bottom, the first square type coupled capacitor Piece (105) is located at the top of the second insulating medium layer (104), and the second square type coupled capacitor piece (103) is located at the 3rd dielectric The top of layer (102).

3. the CPW plates being adapted with the ceramic antenna described in claim 1, it is characterised in that the CPW plates include：

First ground plane (302) and the second ground plane (305), two ground planes L-shaped one side for being arranged on CPW plates respectively, Interconnected antenna is formed between two ground planes and places vacancy (301) and conducting wire setting passage, the first ground plane (302) and Second ground plane (305) is respectively arranged with connection raised line and extends to antenna placement vacancy (301)；

Input and output conducting wire (304), input and output conducting wire (304) sets passage to set along conducting wire, and one end extends to antenna and puts Empty scarce (301)；

Full ground plane, full ground plane are arranged on the other one side of CPW plates, the first ground plane (302) and the second ground plane (305)

It is connected respectively by metallization VIA (303) between full ground plane.

4. CPW plates according to claim 3, it is characterised in that the impedance of input and output conducting wire (304) is 50 ohm, entirely Ground plane is metal copper foil.

5. the double frequency Loop antennas that a kind of multi-layer porcelain antenna and pcb board combine, it is characterised in that double frequency Loop antennas include The CPW plates described in multi-layer porcelain antenna and claim 3 or 4 described in claim 1 or 2.