CN207282712U - A kind of new ceramics antenna of impedance adjustable - Google Patents
A kind of new ceramics antenna of impedance adjustable Download PDFInfo
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- CN207282712U CN207282712U CN201721242352.3U CN201721242352U CN207282712U CN 207282712 U CN207282712 U CN 207282712U CN 201721242352 U CN201721242352 U CN 201721242352U CN 207282712 U CN207282712 U CN 207282712U
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Abstract
The utility model discloses a kind of new ceramics antenna of impedance adjustable, including：Ceramic matrix, reflecting surface electrode, radiating surface electrode, two metal electrodes, feedback pin and groove, the impedance value of antenna is adjusted by opening up groove, change impedance value with width by varying the length of groove, the metal electrode is not connected with reflecting surface electrode and radiating surface electrode, changes the resonance frequency point of ceramic antenna by setting metal electrode.The utility model around feedback pin by setting L-type groove, in the case where not changing the position of the former feedback pin of ceramic matrix, you can change the impedance value of ceramic antenna；This ceramic antenna efficiently utilizes the side of ceramic antenna, two metal electrodes are equipped with its side, two metal electrodes are not connected with radiating surface electrode and reflecting surface electrode, the resonance frequency point of ceramic antenna can be adjusted by varying the size and location of two metal electrodes, the resonance frequency point of antenna is finally reached gps satellite L1 frequencies.
Description
Technical field
It the utility model is related to a kind of ceramic antenna, more particularly to a kind of new ceramics antenna of impedance adjustable.
Background technology
With the development of satellite positioning tech, more and more electronic equipments employ satellite positioning functions.Mainstream at present
Satellite signal receiving antenna, be using ceramics made of circular polarisation square ceramic antenna, ceramic antenna receive satellite-signal
Necessary condition to be that the resonance frequency point of ceramic antenna must be differed with gps satellite L1 frequencies (1575.42MHZ) be less than 5-
10MHZ.Ceramic antenna is presented by one piece of ceramic matrix, with the close-connected radiation electrode of ceramic matrix and reflecting electrode and one
Pin forms, and the position where presenting pin becomes feed point.According to agreement, all ceramic antennas are all matched with 50 ohm.Square
The head-on radiation face of ceramic antenna is typically all square electrode face, its impedance is the distance to radiation electrode four edges by feed point
What difference determined, range difference zero, then impedance is zero.In order to obtain suitable impedance matching, feed point be generally not in antenna just
Center, but minor adjustment is done on XY directions, range difference is formed, so can be on the basis of any fringe cost not be increased
Obtain the scope of an impedance.But the position of feed point, it is that mould when having ceramic matrix making determines, that is to say, that one
Denier mould is made, and the position of its feed point determines that, if it is desired to rechanges the position of feed point to change antenna impedance value, just needs
Mould is remake, expends time and cost.
Therefore, the prior art is defective, it is necessary to improve.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of new ceramics antenna of impedance adjustable,
It is the impedance of adjustable ceramic antenna with simple time saving and energy saving mode.
The technical solution of the utility model is as follows：A kind of new ceramics antenna of impedance adjustable, including：Ceramic matrix, glue
It is connected on the reflecting surface electrode of the ceramic matrix top surface, is bonded in the radiating surface electrode of the ceramic matrix bottom surface, arranged on described
Two metal electrodes of ceramic matrix side, the feedback pin through the ceramic matrix and the groove around the feedback pin.Institute
State feedback pin one end with the radiating surface electrode to be connected, the other end exposes the reflecting surface electrode.The metal electrode and reflection
Face electrode and radiating surface electrode are not connected with, and change the resonance frequency point of ceramic antenna by setting metal electrode.
Further, the groove is L-shaped, which will present pin and surround, and change impedance value by setting groove.
Further, the size of the ceramic matrix is long 8mm, wide 8mm, thick 4mm.
Using the above scheme, the utility model has the advantages that：
1st, this ceramic antenna around feedback pin by setting L-type groove, in the case where not changing the position of the former feedback pin of ceramic matrix,
The impedance value of ceramic antenna can be changed；
2nd, this ceramic antenna efficiently utilizes the side of ceramic antenna, and two metal electrodes, two gold medals are equipped with its side
Belong to electrode with radiating surface electrode and reflecting surface electrode not to be connected, can be adjusted by varying the size and location of two metal electrodes
The resonance frequency point of ceramic antenna, makes the resonance frequency point of antenna be finally reached gps satellite L1 frequencies.
Brief description of the drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the top view of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Please refer to Fig.1 and Fig. 2, the utility model provide a kind of new ceramics antenna of impedance adjustable, including：Ceramic matrix
10th, it is bonded in the reflecting surface electrode 20 of 10 top surface of ceramic matrix, is bonded in the radiating surface electricity of 10 bottom surface of ceramic matrix
Pole, two metal electrodes 30 arranged on 10 side of ceramic matrix, through the feedback pin 40 of the ceramic matrix 10 and arranged on institute
The groove 50 around feedback pin 40 is stated, in the present embodiment, the ceramic matrix is preferably dimensioned to be long 8mm, wide 8mm, thick 4mm.
Described feedback 40 one end of pin is connected with the radiating surface electrode, and the other end exposes the reflecting surface electrode 20.The metal electrode
30 are not connected with reflecting surface electrode 20 and radiating surface electrode, change the resonance of ceramic antenna by setting metal electrode 30
Frequency point.Radiating surface electrode, reflecting surface electrode and two metal electrodes are covered in ceramic matrix surface by way of silk-screen printing,
Then electrode is made to bond together with ceramic matrix by high temperature metallization.
As shown in Fig. 2, the groove 50 is L-shaped, which surrounds pin 40 is presented, by setting groove 50 to change
The impedance value of ceramic antenna.Change the length of L1 and L2 by varying the length a and width b of L-type groove, so as to change ceramics
The impedance value of antenna, when L1/L2 is bigger, impedance value is smaller, and when L1/L2 is smaller, impedance value is bigger.
In conclusion the utility model has the advantages that：
1st, this ceramic antenna around feedback pin by setting L-type groove, in the case where not changing the position of the former feedback pin of ceramic matrix,
The impedance value of ceramic antenna can be changed；
2nd, this ceramic antenna efficiently utilizes the side of ceramic antenna, and two metal electrodes, two gold medals are equipped with its side
Belong to electrode with radiating surface electrode and reflecting surface electrode not to be connected, can be adjusted by varying the size and location of two metal electrodes
The resonance frequency point of ceramic antenna, makes the resonance frequency point of antenna be finally reached gps satellite L1 frequencies.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the present invention, all in this practicality
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in the guarantor of the utility model
Within the scope of shield.
Claims (3)
- A kind of 1. new ceramics antenna of impedance adjustable, it is characterised in that including：Ceramic matrix, be bonded in the ceramic matrix The reflecting surface electrode of top surface, the radiating surface electrode for being bonded in the ceramic matrix bottom surface, two arranged on the ceramic matrix side Metal electrode, through the ceramic matrix feedback pin and arranged on it is described feedback pin around groove, it is described feedback pin one end with it is described Radiating surface electrode is connected, and the other end exposes the reflecting surface electrode, the metal electrode and reflecting surface electrode and radiating surface Electrode is not connected with.
- 2. the new ceramics antenna of impedance adjustable according to claim 1, it is characterised in that the groove is L-shaped.
- 3. the new ceramics antenna of impedance adjustable according to claim 1, it is characterised in that the size of the ceramic matrix For long 8mm, wide 8mm, thick 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721242352.3U CN207282712U (en) | 2017-09-26 | 2017-09-26 | A kind of new ceramics antenna of impedance adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721242352.3U CN207282712U (en) | 2017-09-26 | 2017-09-26 | A kind of new ceramics antenna of impedance adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207282712U true CN207282712U (en) | 2018-04-27 |
Family
ID=61982007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721242352.3U Active CN207282712U (en) | 2017-09-26 | 2017-09-26 | A kind of new ceramics antenna of impedance adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207282712U (en) |
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2017
- 2017-09-26 CN CN201721242352.3U patent/CN207282712U/en active Active
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