CN204947082U - A kind of high-gain parasitic structure antenna - Google Patents
A kind of high-gain parasitic structure antenna Download PDFInfo
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- CN204947082U CN204947082U CN201520779825.8U CN201520779825U CN204947082U CN 204947082 U CN204947082 U CN 204947082U CN 201520779825 U CN201520779825 U CN 201520779825U CN 204947082 U CN204947082 U CN 204947082U
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Abstract
The utility model relates to a kind of high-gain parasitic structure antenna, which solve the technical problem that existing X-band Doppler radar safety-protection system communication distance is short, working band is narrow, cost is high, it comprises dielectric-slab, dielectric-slab be positively connected with circuit floor, two T-shaped power splitters and two passive antenna battle arrays, two T-shaped power splitters are positioned at the both sides on circuit floor, and two passive antenna battle arrays are positioned at the both sides on circuit floor; The passive antenna battle array of circuit floor homonymy is connected with T-shaped power splitter; The back side of dielectric-slab is connected with antenna floor and feeding interface, and antenna floor is connected by metallic ground via hole with the circuit floor in dielectric-slab front, and T-shaped power splitter is connected with feeding interface; Passive antenna battle array encourages paster and 3 parasitic couplings pasters to form by 1 feed.The utility model is widely used in X-band Doppler radar safety-protection system.
Description
Technical field
The utility model relates to a kind of antenna, particularly relates to a kind of high-gain parasitic structure antenna.
Background technology
X-band Doppler radar safety-protection system in conjunction with many technology complex probes such as infrared acquisition, microwave Doppler radar detections, precisely can detect overlay area, detection validity is enhanced, and reduces the problems such as wrong report.The technological deficiency that existing X-band Doppler radar safety-protection system ubiquity communication distance is short, working band is narrow, cost is high.
Summary of the invention
The utility model, in order to solve the technical problem that existing X-band Doppler radar safety-protection system communication distance is short, working band is narrow, cost is high, provides a kind of and can make the high-gain parasitic structure antenna that system communication distance, working band are wide, cost is low.
The utility model provides a kind of high-gain parasitic structure antenna, comprise dielectric-slab, dielectric-slab be positively connected with circuit floor, two T-shaped power splitters and two passive antenna battle arrays, two T-shaped power splitters are positioned at the both sides on circuit floor, and two passive antenna battle arrays are positioned at the both sides on circuit floor; The passive antenna battle array of circuit floor homonymy is connected with T-shaped power splitter; The back side of dielectric-slab is connected with antenna floor and feeding interface, and antenna floor is connected by metallic ground via hole with the circuit floor in dielectric-slab front, and T-shaped power splitter is connected with feeding interface; Passive antenna battle array encourages paster and 3 parasitic couplings pasters to form by 1 feed.
Preferably, 2 parasitic couplings pasters of paster minor face and feed is encouraged to encourage the distance between paster to be 1.2mm along feed; 1 parasitic couplings paster on the long limit of paster and feed is encouraged to encourage the distance between paster to be 0.5mm along feed.
Preferably, dielectric-slab is connected with radome.
The beneficial effects of the utility model are: by improving antenna gain thus adding the reading distance of X-band Doppler radar safety-protection system, have structure simple, and it is convenient to optimize, the advantage that cost is low.As shown in the Figure 4 and 5 in Figure of description, through simulation optimization, the utility model parasitic structure antenna array in the frequency range of 10.1 ~ 11GHz, S
11be less than-10dB.Antenna has the wideband operational bandwidth of 0.9GHz.Under 10.525GHz frequency range, array gain is 8.5dBi.Compared to existing antenna array structure, the utility model parasitic structure antenna improves 0.5dBi.
The further feature of the utility model, by the description of following embodiment, is clearly recorded.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the rearview of Fig. 1;
Fig. 3 is the end view of Fig. 1;
Fig. 4 is the S of parasitic structure antenna
11parameters simulation figure;
Fig. 5 is the gain analogous diagram of parasitic structure antenna.
Reference numeral illustrates:
1. passive antenna battle array; 2.T type power splitter; 3.FR4 dielectric-slab; 4. be decided to be hole; 5. antenna floor; 6. direct current cabling gap; 7. metallic ground via hole; 8. installing hole; 9. feeding interface; 10. radome; 11. circuit floors.
Embodiment
As Figure 1-3, FR4 dielectric-slab 3 be positively connected with the T-shaped power splitter 2 in 11, two, circuit floor and two passive antenna battle arrays 1.Two passive antenna battle arrays 1 are the fronts that parasitism is loaded into FR4 dielectric-slab 3.Circuit floor 11 is positioned at the centre position of FR4 dielectric-slab 3, and two T-shaped power splitters 2 are positioned at the both sides on circuit floor 11, and two passive antenna battle arrays 1 are positioned at the both sides on circuit floor 11.
Parasitic loading technique adds disconnected parasitic couplings paster around a feed excitation paster.Parasitic couplings paster produces induced current by the radiated electromagnetic energy of couple feed excitation paster, thus space radiation energy is to improve antenna gain.
The passive antenna battle array 1 of circuit floor 11 homonymy is connected with T-shaped power splitter 2, and T-shaped power splitter 2 is incorporated into the back side by metallic vias by the front of FR4 dielectric-slab 3, is connected with the feeding interface 9 at the back side, and feeding interface 9 is convenient to be connected with support circuit port.
A passive antenna battle array 1 encourages paster and 3 parasitic couplings pasters to form by 1 feed, encourages 2 parasitic couplings pasters of paster minor face and feed to encourage the distance between paster to be 1.2mm along feed; 1 parasitic couplings paster on the long limit of paster and feed is encouraged to encourage the distance between paster to be 0.5mm along feed.Optimize the distance between feed excitation paster and 3 parasitic couplings pasters, improve antenna gain.
The back side of FR4 dielectric-slab 3 is connected with antenna floor 5, and antenna floor 5 is connected by metallic ground via hole 7 with the circuit floor 11 in FR4 dielectric-slab 3 front,
5V DC electric wire is connected with oscillator by the direct current cabling gap 6 on FR4 dielectric-slab 3 back side, provides 5V stabilized voltage power supply for pierce circuit.
Four Angle Position of FR4 dielectric-slab 3 are provided with eight installing holes 8, to tighten up a screw fixed mask cover 10.FR4 dielectric-slab 3 has a rectangle and be decided to be hole 4, to distinguish radome 10 placement location.
During use, feed excitation paster by excitation three parasitic couplings pasters around, make parasitic couplings paster produce induced current thus space radiation energy to improve antenna gain.
The above only to preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.Every in claim limited range of the present utility model, any amendment made, equivalent replacement, improvement etc., all should within protection range of the present utility model.
Claims (3)
1. a high-gain parasitic structure antenna, comprise dielectric-slab, it is characterized in that, described dielectric-slab be positively connected with circuit floor, two T-shaped power splitters and two passive antenna battle arrays, described two T-shaped power splitters are positioned at the both sides on described circuit floor, and described two passive antenna battle arrays are positioned at the both sides on described circuit floor; The passive antenna battle array of described circuit floor homonymy is connected with T-shaped power splitter; The back side of described dielectric-slab is connected with antenna floor and feeding interface, and described antenna floor is connected by metallic ground via hole with the circuit floor in described dielectric-slab front, and described T-shaped power splitter is connected with described feeding interface; Described passive antenna battle array encourages paster and 3 parasitic couplings pasters to form by 1 feed.
2. high-gain parasitic structure antenna according to claim 1, is characterized in that, encourages 2 parasitic couplings pasters of paster minor face and feed to encourage the distance between paster to be 1.2mm along feed; 1 parasitic couplings paster on the long limit of paster and feed is encouraged to encourage the distance between paster to be 0.5mm along feed.
3. high-gain parasitic structure antenna according to claim 2, it is characterized in that, described dielectric-slab is connected with radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779825.8U CN204947082U (en) | 2015-10-09 | 2015-10-09 | A kind of high-gain parasitic structure antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779825.8U CN204947082U (en) | 2015-10-09 | 2015-10-09 | A kind of high-gain parasitic structure antenna |
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| Publication Number | Publication Date |
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| CN204947082U true CN204947082U (en) | 2016-01-06 |
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| CN201520779825.8U Active CN204947082U (en) | 2015-10-09 | 2015-10-09 | A kind of high-gain parasitic structure antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356622A (en) * | 2016-11-25 | 2017-01-25 | 南京理工大学 | High gain dual-frequency dual circularly polarized common-caliber planar array antenna |
| CN106356623A (en) * | 2016-12-02 | 2017-01-25 | 北京富奥星电子技术有限公司 | High-grain and broad-beam antenna |
| CN107706546A (en) * | 2017-09-20 | 2018-02-16 | 哈尔滨工程大学 | A kind of multiband antenna of parasitic couplings feed |
| CN109638433A (en) * | 2018-11-13 | 2019-04-16 | 上海无线电设备研究所 | A kind of low section fuze antenna |
| WO2020134352A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Antenna and vehicle-mounted device |
| CN112909558A (en) * | 2021-01-18 | 2021-06-04 | 华南理工大学 | Laminated patch antenna based on radiation regulation and control and communication equipment |
-
2015
- 2015-10-09 CN CN201520779825.8U patent/CN204947082U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356622A (en) * | 2016-11-25 | 2017-01-25 | 南京理工大学 | High gain dual-frequency dual circularly polarized common-caliber planar array antenna |
| CN106356622B (en) * | 2016-11-25 | 2019-01-15 | 南京理工大学 | High-gain dual-frequency double-circle polarization Shared aperture planar array antenna |
| CN106356623A (en) * | 2016-12-02 | 2017-01-25 | 北京富奥星电子技术有限公司 | High-grain and broad-beam antenna |
| CN107706546A (en) * | 2017-09-20 | 2018-02-16 | 哈尔滨工程大学 | A kind of multiband antenna of parasitic couplings feed |
| CN107706546B (en) * | 2017-09-20 | 2021-02-12 | 哈尔滨工程大学 | Multi-band antenna with parasitic coupling feed |
| CN109638433A (en) * | 2018-11-13 | 2019-04-16 | 上海无线电设备研究所 | A kind of low section fuze antenna |
| WO2020134352A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Antenna and vehicle-mounted device |
| CN112909558A (en) * | 2021-01-18 | 2021-06-04 | 华南理工大学 | Laminated patch antenna based on radiation regulation and control and communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161008 Address after: 100081, No. 4, building 32, hospital No. A109, South College Road, Beijing, Haidian District Patentee after: Beijing Aoxing Electronic Technology Co Ltd Address before: 100876 Beijing University of Posts and Telecommunications, Haidian District, Beijing, box 171 Patentee before: Li Xiuping |