CN2201731Y - Variable polarization casing permitting grid plate - Google Patents
Variable polarization casing permitting grid plate Download PDFInfo
- Publication number
- CN2201731Y CN2201731Y CN 94229555 CN94229555U CN2201731Y CN 2201731 Y CN2201731 Y CN 2201731Y CN 94229555 CN94229555 CN 94229555 CN 94229555 U CN94229555 U CN 94229555U CN 2201731 Y CN2201731 Y CN 2201731Y
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- CN
- China
- Prior art keywords
- wire
- belt
- screen
- metal wire
- grid plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an antenna component, particularly a grid plate. The utility model paves a plurality of metal wire belts which are parallel mutually on the surface of the plate-shaped insulating base material; every metal wire belt has the same width, and the distance between every two adjacent metal wire belts is equal. Every metal wire belt is formed respective by a plurality of metal wires which are parallel mutually and have the same width, and the distance between every two adjacent metal wires is same in every metal wire belt. The grid plate can be used for making the permitting multi-grid type circular polarization casing which has characteristic of wide frequency belt and advantages of small size, easy manufacture and debugging, and low cost.
Description
The utility model relates to a kind of antenna parts.
The plectane cover is a kind of vitals that is widely used in radar, the communication antenna, utilizes it can improve the anti-clutter characteristic of radar and the anti-environmental interference characteristic of communication greatly.The main member of circular polarization cover is for being equipped with the polarization cover screen of metallic conductor on tabular insulating substrate surface.Be subjected to the restriction of screen self performance, existing circular polarization cover often can not be taken into account on factors such as working band, volume, cost of manufacture, has number of drawbacks.In order to improve the performance of circular polarization cover, be necessary to provide a kind of novel polarization cover screen.
The purpose of this utility model provides a kind of polarization casing permitting screen.
Capacitive screen of the present utility model is equipped with wire on the surface of tabular insulating substrate, and this wire is laid at least three wire belts that are parallel to each other at substrate surface.The bandwidth of each wire belt is identical, and the spacing of each adjacent metal silk ribbon equates.Wire in each strip metal silk ribbon is parallel to each other and width equates, the spacing of adjacent wire equates in each wire belt.By suitably choosing wire width and spacing, can make screen of the present utility model have following characteristic: when electric field E was parallel to wire, the wire belt on the screen was equivalent to metal band, the screen of this moment that is be equivalent to the capacitive reactance plate of laying metal band; And as electric field E during perpendicular to wire, influence wiry then can be ignored.Also that is to say that for a certain polarity electromagnetic field, screen is capacitive reactance, and for the electromagnetic field of quadrature with it, screen is gentle if do not exist.Therefore, this screen satisfies the condition of making the circular polarization cover, and has good interference free performance.When making this screen, can wire be layed in tabular insulating substrate surface by common process such as printing or burn into embeddings.
Utilize the utility model screen can make capacitive multiple-grid type circular polarization cover, this kind circular polarization cover not only has the characteristics of bandwidth, and has had both the advantage that volume is little, the making debugging is easy, production cost is low simultaneously.In addition, the utility model screen still can be used for other similar field except that being used to construct the circular polarization cover.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Fig. 1 is the structural representation of screen among the embodiment.
As shown in Figure 1, the screen among the embodiment has the tabular insulating substrate 1 of polytetrafluoroethylene, adopts the copper clad plate etch process to lay several wire belts 2 on the surface of base material 1.The bandwidth of each wire belt is all a, and the spacing of each adjacent metal silk ribbon is all b, gets a=20.56mm, b=3.32mm.Every strip metal silk ribbon is made of the some one metal wires that are parallel to each other and width is all t, and the spacing of adjacent wire is all s in each wire belt.Get t=0.96mm among the embodiment, s=3.82mm, the value of t, s satisfies relational expression:
λ／｛（s＋t）ln［2（s＋t）／πt］｝≥3，
πt
2／［2λ（s＋t）］≤0.3，
In the formula, λ is selected screen central task wavelength, λ ≈ 76mm.Through theory and practical proof, choose wire width t and distance s by the above-mentioned relation formula, can guarantee that the screen of making reaches designing requirement.
Claims (2)
1, a kind of polarization casing permitting screen, be equipped with metallic conductor on tabular insulating substrate surface, it is characterized in that described metallic conductor is a wire, described wire is laid at least three wire belts that are parallel to each other at substrate surface, the bandwidth of each wire belt is identical, the spacing of each adjacent metal silk ribbon equates that the wire in each wire belt is parallel to each other and width equates, the spacing of adjacent wire equates in each wire belt.
2, screen as claimed in claim 1 is characterized in that width wiry is t in the wire belt, and the spacing of adjacent wire is s in the wire belt, and the value of s and t satisfies relational expression
λ／｛（s＋t）ln［2（s＋t）／πt］｝≥3，
πt
2／［2λ（s＋t）］≤0.3，
In the formula, λ is the screen operation wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229555 CN2201731Y (en) | 1994-09-05 | 1994-09-05 | Variable polarization casing permitting grid plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229555 CN2201731Y (en) | 1994-09-05 | 1994-09-05 | Variable polarization casing permitting grid plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2201731Y true CN2201731Y (en) | 1995-06-21 |
Family
ID=33841858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94229555 Expired - Fee Related CN2201731Y (en) | 1994-09-05 | 1994-09-05 | Variable polarization casing permitting grid plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2201731Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752668B (en) * | 2008-12-22 | 2012-11-21 | 西安飞机工业（集团）有限责任公司 | Metal wire laying device |
| CN106785473A (en) * | 2017-01-03 | 2017-05-31 | 中国船舶重工集团公司第七二四研究所 | A kind of adjustable mode transmission metal framework circular polarisation cover in position |
| CN113851835A (en) * | 2021-12-01 | 2021-12-28 | 陕西海积信息科技有限公司 | Horizontal omnidirectional circularly polarized antenna |
-
1994
- 1994-09-05 CN CN 94229555 patent/CN2201731Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752668B (en) * | 2008-12-22 | 2012-11-21 | 西安飞机工业（集团）有限责任公司 | Metal wire laying device |
| CN106785473A (en) * | 2017-01-03 | 2017-05-31 | 中国船舶重工集团公司第七二四研究所 | A kind of adjustable mode transmission metal framework circular polarisation cover in position |
| CN113851835A (en) * | 2021-12-01 | 2021-12-28 | 陕西海积信息科技有限公司 | Horizontal omnidirectional circularly polarized antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |