CN203466287U - Planar antenna inhibiting side lobe level by utilizing choke groove - Google Patents
Planar antenna inhibiting side lobe level by utilizing choke groove Download PDFInfo
- Publication number
- CN203466287U CN203466287U CN201320530968.6U CN201320530968U CN203466287U CN 203466287 U CN203466287 U CN 203466287U CN 201320530968 U CN201320530968 U CN 201320530968U CN 203466287 U CN203466287 U CN 203466287U
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- Prior art keywords
- choke groove
- planar antenna
- plate aerial
- model
- side lobe
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The utility model relates to a planar antenna for inhibiting a side lobe level by utilizing a choke groove. The planar antenna comprises a planar antenna body, wherein the edge of the planar antenna body is provided with the choke groove; the depth of the choke groove is (1/4) lambda, and the lambda is the wavelength of an antenna signal received by the planar antenna; the width of the choke groove is less than or equal to (1/10) lambda, and the lambda is the wavelength of the antenna signal received by the planar antenna. The planar antenna for inhibiting the side lobe level by utilizing the choke groove is simple in structure and processing process. Compared with a method for controlling the side lobe level through aperture distribution, the planar antenna disclosed by the utility model is much more simplified. Compared with a planar antenna without the choke groove, the planar antenna disclosed by the utility model is obviously inhibited in side lobe.
Description
Technical field
The utility model relates to a kind of plate aerial that utilizes choke groove suppressed sidelobes level, belongs to the technical field of the plate aerial of communicating by letter.
Background technology
Waveguide type gap radiation antenna, compares with the common reflector antenna that tradition is conventional, has good mechanical strength, higher radiation efficiency, compact antenna structure, lower antenna feed loss, the good superiority such as power capacity.At present, plate aerial is little with its volume, easy to carry, and efficiency advantages of higher is applied widely.
Consider that facing star disturbs, satellite communication has strict demand with plate aerial for secondary lobe, near region sidelobe level envelope.Conventional waveguide feedback rear cavity plate aerial, the merits such as employing are divided, anti-phase power splitter cascade forms feeding network, and antenna element is carried out to constant amplitude, homophase feed, and antenna efficiency is high, but the first sidelobe level, near region sidelobe level envelope cannot reach and defend logical requirement.This also directly caused plate aerial in satellite communication system, be difficult to network, utilization rate is not high.Controlling at present the method for sidelobe level, is mainly to adopt specified caliber to distribute to realize Sidelobe control, and the advantage of the method is that sidelobe level value can control in a big way in, but design, processing technology complexity comparatively.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of plate aerial that utilizes choke groove suppressed sidelobes level.The utility model, by prepare choke groove on plate aerial, is realized the surface current suppressing on plate aerial face plate edge, sidewall, reaches the effect of controlling described plate aerial the first sidelobe level.
The technical solution of the utility model is as follows:
Utilize a plate aerial for choke groove suppressed sidelobes level, comprise plate aerial body, at the edge of described plate aerial body, be provided with choke groove, the degree of depth of described choke groove is (1/4) λ, and described λ is the wavelength of plate aerial institute reception antenna signal.
Preferred according to the utility model, the width of described choke groove≤(1/10) λ, described λ is the wavelength of plate aerial institute reception antenna signal.
Principle of the present utility model:
According to transmission line principle, quarter-wave transmission line has impedance transformation principle,
when a termination short circuit load of quarter-wave transmission line, other end input impedance infinitely great (for open-circuit condition).Utilize this principle, the described choke groove degree of depth is for receiving 1/4th of signal wavelength, its bottom is in short circuit, through quarter-wave transformer section, opening part at choke groove is open circuit, this structural design has suppressed the propagation of plate aerial surface current, thereby reaches the object that suppresses the first secondary lobe electric current.
The utility model has the advantage of:
A kind of plate aerial that utilizes choke groove suppressed sidelobes level described in the utility model, its structure and processing technology are simple, than the method for controlling sidelobe level than Aperture distribution, simplify a lot.The secondary lobe of plate aerial described in the utility model is obviously inhibited than the plate aerial without choke groove.
Accompanying drawing explanation
Fig. 1 is the perspective view of plate aerial described in the utility model;
Fig. 2 is the side sectional view of Fig. 1;
Fig. 3 is the perspective view of existing described plate aerial;
Fig. 4 is the analog circuit schematic diagram of choke groove described in the utility model;
Fig. 5 is the schematic diagram of choke groove described in the utility model;
Fig. 6 is existing without choke groove plate aerial and the comparison diagram that the utlity model has the sidelobe level of choke groove plate aerial;
In Fig. 1-5,1, plate aerial body; 2, choke groove; 3, the open circuit that choke groove forms; 4, the short circuit that choke groove forms.
Embodiment
Below in conjunction with embodiment and Figure of description, the utility model is described in detail, but is not limited to this.
Embodiment
The present embodiment utilizes plate aerial described in the utility model to receive the signal that wavelength is λ=24mm.
Utilize a plate aerial for choke groove suppressed sidelobes level, comprise plate aerial body 1, at the edge of described plate aerial body 1, be provided with choke groove 2, the length of described choke groove 2 is consistent with the length of side of described plate aerial.The degree of depth of described choke groove 2 is (1/4) λ, and described λ is the wavelength of plate aerial institute reception antenna signal, and the degree of depth of described choke groove 2 is 6mm.
The width of described choke groove≤(1/10) λ, described λ is the wavelength of plate aerial institute reception antenna signal, the degree of depth of choke groove described herein is 0.5mm, but the degree of depth of the utility model choke groove is not limited to 0.5mm.
Fig. 6 is existing without choke groove plate aerial and the comparison diagram that the utlity model has the sidelobe level of choke groove plate aerial, wherein said existing identical with the apparent size, the structure that the utlity model has choke groove plate aerial without choke groove plate aerial, only difference is: the edge at described plate aerial body is provided with choke groove.
The secondary lobe of plate aerial described in the utility model is obviously inhibited than the plate aerial without choke groove as ise apparent from FIG. 6.
Claims (2)
1. a plate aerial that utilizes choke groove suppressed sidelobes level, comprise plate aerial body, it is characterized in that, at the edge of described plate aerial body, be provided with choke groove, the degree of depth of described choke groove is (1/4) λ, and described λ is the wavelength of plate aerial institute reception antenna signal.
2. a kind of plate aerial that utilizes choke groove suppressed sidelobes level according to claim 1, is characterized in that, the width of described choke groove≤(1/10) λ, and described λ is the wavelength of plate aerial institute reception antenna signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530968.6U CN203466287U (en) | 2013-08-28 | 2013-08-28 | Planar antenna inhibiting side lobe level by utilizing choke groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530968.6U CN203466287U (en) | 2013-08-28 | 2013-08-28 | Planar antenna inhibiting side lobe level by utilizing choke groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466287U true CN203466287U (en) | 2014-03-05 |
Family
ID=50178628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320530968.6U Expired - Fee Related CN203466287U (en) | 2013-08-28 | 2013-08-28 | Planar antenna inhibiting side lobe level by utilizing choke groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474752A (en) * | 2013-08-28 | 2013-12-25 | 山东国威舜泰卫星通信有限公司 | Planar antenna for inhibiting side lobe level by utilizing choke groove |
| CN108429009A (en) * | 2018-03-15 | 2018-08-21 | 北京环境特性研究所 | A kind of double polarization array antenna structure |
-
2013
- 2013-08-28 CN CN201320530968.6U patent/CN203466287U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474752A (en) * | 2013-08-28 | 2013-12-25 | 山东国威舜泰卫星通信有限公司 | Planar antenna for inhibiting side lobe level by utilizing choke groove |
| CN108429009A (en) * | 2018-03-15 | 2018-08-21 | 北京环境特性研究所 | A kind of double polarization array antenna structure |
| CN108429009B (en) * | 2018-03-15 | 2020-06-02 | 北京环境特性研究所 | Dual-polarized array antenna structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |