CN203983455U - A kind of double-circle polarization directional antenna - Google Patents
A kind of double-circle polarization directional antenna Download PDFInfo
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- CN203983455U CN203983455U CN201420268069.8U CN201420268069U CN203983455U CN 203983455 U CN203983455 U CN 203983455U CN 201420268069 U CN201420268069 U CN 201420268069U CN 203983455 U CN203983455 U CN 203983455U
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Abstract
A kind of double-circle polarization directional antenna, comprises metallic reflection base plate, circuit board, 3dB electric bridge, the first micro-strip oscillator, the second micro-strip oscillator, the first radio frequency connector, the second radio frequency connector; Metallic reflection base plate is rectangle, and circuit board is the rectangle that is less than metallic reflection base plate, and circuit board aligns with metallic reflection plate coaxial line and a narrow side, and circuit board is fixedly connected with metallic reflection base plate by screw nut; On circuit board, etching has 3dB electric bridge, and the first micro-strip oscillator and the second micro-strip oscillator are mutually vertical and be fixed on electrical connection corresponding to 3dB electric bridge on circuit board; The first radio frequency connector and the second radio frequency connector are fixed on metallic reflection base plate, and be connected with two inputs of 3dB electric bridge respectively, the directional diagram high conformity of two circular polarization, the phase place of two-way is identical, axial ratio bandwidth is wider, and in system, application message transmission rate is high.
Description
Technical field
The utility model relates to a kind of radio antenna, particularly relates to a kind of polarization directional antenna.
Background technology
At present, user is more and more to the demand of radio communication, and the requirement of wireless transmission rate is improved constantly.Multiaerial system can significantly improve transmission rate and ensure communication quality in limited frequency spectrum resource, and wherein dual circularly polarized antenna is applied.Traditional dual circularly polarized antenna, the directional diagram consistency of two circular polarization is poor, the phase difference of two-way is larger, axial ratio bandwidth is narrower, in system application restric-tion transmission rate.
Utility model content
The purpose of this utility model is to provide a kind of double-circle polarization directional antenna, for solving the problems of the technologies described above.
Double-circle polarization directional antenna of the present utility model, comprises metallic reflection base plate, circuit board, 3dB electric bridge, the first micro-strip oscillator, the second micro-strip oscillator, the first radio frequency connector, the second radio frequency connector;
Metallic reflection base plate is rectangle, and circuit board is the rectangle that is less than metallic reflection base plate, and circuit board aligns with metallic reflection plate coaxial line and a narrow side, and circuit board is fixedly connected with metallic reflection base plate by screw nut; On circuit board, etching has 3dB electric bridge, and the first micro-strip oscillator and the second micro-strip oscillator are mutually vertical and be fixed on electrical connection corresponding to 3dB electric bridge on circuit board; The first radio frequency connector and the second radio frequency connector are fixed on metallic reflection base plate, and are connected with two inputs of 3dB electric bridge respectively.
3dB electric bridge comprises first input end mouth, the second input port, the first output port, the second output port, also comprises in addition ground pad, cross bath on circuit board.
The impedance transformation joint impedance of 3dB electric bridge is 35.35 Ω, and two output port phase differences are 90 °.
The first micro-strip oscillator is rectangle, comprises oscillator arms the first oscillator arms, the second oscillator arms, the first micro-strip oscillator feed circuit, the first micro-strip oscillator coupling circuit, the first micro-strip oscillator projection, the first micro-strip oscillator joint mouth.
The second micro-strip oscillator comprises oscillator arms the 3rd oscillator arms, the 4th oscillator arms, the second micro-strip oscillator feed circuit, the second micro-strip oscillator coupling circuit, the second micro-strip oscillator projection, the second micro-strip oscillator joint mouth.
The length sum of the first micro-strip oscillator joint mouth and the second micro-strip oscillator joint mouth is greater than the length of the central axis of the first micro-strip oscillator.
Groove type is arranged in the second feed circuit position corresponding with the second micro-strip oscillator joint mouth.
The first output port and the second output port equate to the distance at cross bath center.
The beneficial effects of the utility model are, the technology that adopts the orthogonal oscillator of micro-band forms to combine with the 3dB electric bridge with 90 ° of phase shifts, make the pattern characteristics of two circular polarized antennas basic identical, ensure that two-way phase place is basically identical, axial ratio is less than 2 band and is wider than 15%, and gain is greater than 7dBi, in wireless broadband network, utilize this technology can effectively improve message transmission rate, can improve significantly communication system performance.
Below in conjunction with accompanying drawing, double-circle polarization directional antenna of the present utility model is described further.
Brief description of the drawings
Fig. 1 is the front view of the utility model double-circle polarization directional antenna;
Fig. 2 is the vertical view of the utility model double-circle polarization directional antenna;
Fig. 3 is the 3dB bridge structure schematic diagram of the utility model double-circle polarization directional antenna;
Fig. 4 is the first micro-strip oscillator structural representation of the utility model double-circle polarization directional antenna;
Fig. 5 is the second micro-strip oscillator structural representation of the utility model double-circle polarization directional antenna.
Embodiment
As shown in Figure 1 and Figure 2, the utility model double-circle polarization directional antenna comprises metallic reflection base plate 1, circuit board 2,3dB electric bridge 3, the first micro-strip oscillator 4, the second micro-strip oscillator 5, the first radio frequency connector 8, the second radio frequency connector 9.
Metallic reflection base plate 1 is rectangle, and circuit board 2 is for being less than the rectangle of metallic reflection base plate 1, and circuit board 2 aligns with metallic reflection plate 1 coaxial line and a narrow side, and circuit board 2 is fixedly connected with metallic reflection base plate 1 by screw nut; On circuit board 2, etching has 3dB electric bridge 3, the first micro-strip oscillators 4 and the second micro-strip oscillator 5 mutually vertical and be fixed on circuit board 2 and be connected with 3dB electric bridge 3 corresponding points; The first radio frequency connector 8 and the second radio frequency connector 9 are fixed on metallic reflection base plate 1, and are connected with two inputs of 3dB electric bridge 3 respectively.
Metallic reflection base plate 1 act as by oscillator backward radiation reflection of electromagnetic wave forwards, form the one-way radiation of antenna.
3dB electric bridge 3 for by input the identical two-way radiofrequency signal of phase place, be processed into the two-way radiofrequency signal that is output as 90 ° of phase phasic differences, the impedance transformation joint impedance design of 3dB electric bridge 3 is 35.35 Ω, can change by adjusting this conversion joint impedance the return loss of antenna; The first micro-strip oscillator 4 and the second micro-strip oscillator 5 combine with the 3dB electric bridge 3 with 90 ° of phase shifts, and the pattern characteristics of having realized two circular polarized antennas is basic identical, ensure that two-way radiofrequency signal phase place is basically identical; The first radio frequency connector 8, the second radio frequency connector 9 are for connecting radiofrequency launcher received RF signal.
As shown in Figure 3,3dB electric bridge 3 comprises first input end mouth 303, the second input port 304, the first output port 301, the second output port 302, in addition on circuit board 2, also comprise ground pad 6 (be provided with fixing pin accordingly on the first micro-strip oscillator 4 and the second micro-strip oscillator 5, this fixing pin is arranged on a side of micro-strip oscillator), cross bath 7, cross bath center 10;
As shown in Figure 4, the first micro-strip oscillator 4 is rectangle, comprises the first oscillator arms 41, the second oscillator arms 43, the first micro-strip oscillator feed circuit 42, the first micro-strip oscillator coupling circuit 421, the first micro-strip oscillator projection 44, the first micro-strip oscillator joint mouth 45;
As shown in Figure 5, the second micro-strip oscillator 5 is also rectangle, and size is the same with the first micro-strip oscillator 4, and the second micro-strip oscillator 5 comprises the 3rd oscillator arms 51, the 4th oscillator arms 53, the second micro-strip oscillator feed circuit 52, the second micro-strip oscillator coupling circuit 521, the second micro-strip oscillator projection 54, the second micro-strip oscillator joint mouth 55;
The first oscillator arms 41, the second oscillator arms 43, the 3rd oscillator arms 51, the 4th oscillator arms 53 are as the radiator of the utility model double-circle polarization directional aerial.
The first micro-strip oscillator joint mouth 45 is opened in the lower end of the first micro-strip oscillator 4, and is positioned on the central axis of the first micro-strip oscillator 4; The second micro-strip oscillator joint mouth 55 is opened the upper end with oscillator 5 in second, and is positioned on the central axis of the second micro-strip oscillator 5; The first micro-strip oscillator joint mouth 45 and the length sum of the second micro-strip oscillator joint mouth 55 equal the central axis of the first micro-strip oscillator 4 length (with ensure the first micro-strip oscillator 4 and the second micro-strip oscillator 5 engage after the upper lower sideline of two micro-strip oscillators concordant), corresponding in order to coordinate the joint of the first micro-strip oscillator 4 and the second micro-strip oscillator 5, groove type is arranged in the second feed circuit 52 position corresponding with the second micro-strip oscillator joint mouth 55; Cross bath 7 is corresponding with the first micro-strip oscillator projection 44 and the second micro-strip oscillator projection 54; The first output port 301 and the second output port 302 equate to the distance at cross bath center 10.
The second micro-strip oscillator projection 54 is plugged in a limit groove of cross bath 7, the fixing pin of corresponding the second micro-strip oscillator is connected with ground pad 6 by the mode of welding, in addition the second micro-strip oscillator coupling circuit 521 and the first output port 301 is welded together; The first micro-strip oscillator 4 is by the first micro-strip oscillator joint mouth 45 and the second micro-strip oscillator joint mouth 55 and second micro-strip oscillator 5 is orthogonal is plugged in together, in another limit groove of the first micro-strip oscillator projection 44 grafting and cross bath 7, the fixing pin of corresponding the first micro-strip oscillator is connected with ground pad 6 by the mode of welding, in addition the first micro-strip oscillator coupling circuit 421 and the second output port 302 is welded together.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection range of the utility model claims.
Claims (8)
1. a double-circle polarization directional antenna, is characterized in that comprising metallic reflection base plate (1), circuit board (2), 3dB electric bridge (3), the first micro-strip oscillator (4), the second micro-strip oscillator (5), the first radio frequency connector (8), the second radio frequency connector (9);
Metallic reflection base plate (1) is rectangle, circuit board (2) is for being less than the rectangle of metallic reflection base plate (1), circuit board (2) aligns with metallic reflection plate (1) coaxial line and a narrow side, and circuit board (2) is fixedly connected with metallic reflection base plate (1) by screw nut; The upper etching of circuit board (2) has 3dB electric bridge (3), and the first micro-strip oscillator (4) and the second micro-strip oscillator (5) are mutually vertical and be fixed on electrical connection corresponding to 3dB electric bridge (3) on circuit board (2); It is upper that the first radio frequency connector (8) and the second radio frequency connector (9) are fixed on metallic reflection base plate (1), and be connected with two inputs of 3dB electric bridge (3) respectively.
2. a kind of double-circle polarization directional antenna according to claim 1, it is characterized in that, 3dB electric bridge (3) comprises first input end mouth (303), the second input port (304), the first output port (301), the second output port (302), also comprises in addition ground pad (6), cross bath (7) on circuit board (2).
3. a kind of double-circle polarization directional antenna according to claim 2, is characterized in that, the impedance transformation joint impedance of 3dB electric bridge (3) is 35.35 Ω, and two output port phase differences are 90 °.
4. a kind of double-circle polarization directional antenna according to claim 3, it is characterized in that, the first micro-strip oscillator (4) is rectangle, comprises the first oscillator arms (41), the second oscillator arms (43), the first micro-strip oscillator feed circuit (42), the first micro-strip oscillator coupling circuit (421), the first micro-strip oscillator projection (44), the first micro-strip oscillator joint mouth (45).
5. a kind of double-circle polarization directional antenna according to claim 3, it is characterized in that, the second micro-strip oscillator (5) comprises the 3rd oscillator arms (51), the 4th oscillator arms (53), the second micro-strip oscillator feed circuit (52), the second micro-strip oscillator coupling circuit (521), the second micro-strip oscillator projection (54), the second micro-strip oscillator joint mouth (55).
6. according to a kind of double-circle polarization directional antenna described in claim 4 or 5, it is characterized in that, the length sum of the first micro-strip oscillator joint mouth (45) and the second micro-strip oscillator joint mouth (55) is greater than the length of the central axis of the first micro-strip oscillator (4).
7. a kind of double-circle polarization directional antenna according to claim 6, is characterized in that, groove type is arranged in the second feed circuit (52) position corresponding with the second micro-strip oscillator joint mouth (55).
8. a kind of double-circle polarization directional antenna according to claim 7, is characterized in that, the first output port (301) and the second output port (302) equate to the distance at cross bath center (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268069.8U CN203983455U (en) | 2014-05-23 | 2014-05-23 | A kind of double-circle polarization directional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268069.8U CN203983455U (en) | 2014-05-23 | 2014-05-23 | A kind of double-circle polarization directional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983455U true CN203983455U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420268069.8U Expired - Fee Related CN203983455U (en) | 2014-05-23 | 2014-05-23 | A kind of double-circle polarization directional antenna |
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| CN (1) | CN203983455U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193104A (en) * | 2018-03-22 | 2019-01-11 | 财团法人交大思源基金会 | Signal line switching structure of antenna |
| CN109509964A (en) * | 2018-10-29 | 2019-03-22 | 成都市克莱微波科技有限公司 | A kind of broadband circle polarized array antenna |
| CN109904587A (en) * | 2019-04-04 | 2019-06-18 | 中国电子科技集团公司第二十九研究所 | Quadrature dualpolarized metal line of rabbet joint antenna array structure and the antenna array containing the structure |
| CN113764864A (en) * | 2020-06-01 | 2021-12-07 | 千寻位置网络有限公司 | Electronic device comprising an antenna arrangement |
-
2014
- 2014-05-23 CN CN201420268069.8U patent/CN203983455U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193104A (en) * | 2018-03-22 | 2019-01-11 | 财团法人交大思源基金会 | Signal line switching structure of antenna |
| CN109193104B (en) * | 2018-03-22 | 2020-12-11 | 财团法人交大思源基金会 | Signal line switching structure of antenna |
| CN109509964A (en) * | 2018-10-29 | 2019-03-22 | 成都市克莱微波科技有限公司 | A kind of broadband circle polarized array antenna |
| CN109904587A (en) * | 2019-04-04 | 2019-06-18 | 中国电子科技集团公司第二十九研究所 | Quadrature dualpolarized metal line of rabbet joint antenna array structure and the antenna array containing the structure |
| CN113764864A (en) * | 2020-06-01 | 2021-12-07 | 千寻位置网络有限公司 | Electronic device comprising an antenna arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20180523 |