CN202373690U - Omni-directional circularly polarized antenna - Google Patents
Omni-directional circularly polarized antenna Download PDFInfo
- Publication number
- CN202373690U CN202373690U CN2011204915073U CN201120491507U CN202373690U CN 202373690 U CN202373690 U CN 202373690U CN 2011204915073 U CN2011204915073 U CN 2011204915073U CN 201120491507 U CN201120491507 U CN 201120491507U CN 202373690 U CN202373690 U CN 202373690U
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- cone
- polarized antenna
- circularly polarized
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Abstract
The utility model discloses an omni-directional circularly polarized antenna comprising a discone-type antenna and a circularly polarized cover. The discone-type antenna comprises an upper cone, a lower cone and an outer cable conductor, wherein the upper cone and the lower cone are arranged tip to tip, the outer cable conductor is connected with the bottom of the lower cone, an upper expanding disc and a lower expanding disc are respectively arranged at the bottoms of the two cones; the circularly polarized antenna is formed by at least two polarization strips, and the two ends of each polarization strip are fixedly arranged between the upper expanding disc and the lower expanding disc of the discone-type antenna; and the polarization strips are arc-shaped, the upper cone and the lower cone are the same in size, and the distances of the tips of the two cones to the edges of the polarization strips are equal. The omni-directional circularly polarized antenna has the advantages that the structure is simple, the millimeter waves can be detected, and the omni-directional circular polarization can be ensured.
Description
Technical field
The utility model relates to a kind of Ka wave band small size antenna, relates in particular to a kind of omnidirectional circular polarized antenna, and this antenna is mainly used in terrestrial weapon (like der Amphibien-Tank, panzer, cannon), the communication and the electronic countermeasures of air armament equipment (early warning plane).
Background technology
Lot of domestic and international company and scientific research institutions are all in the research of being devoted to aspect this; Such as research, omnidirectional's circular polarized antenna (utilization inclination element antenna) of the research of millimeter wave inclined polarization index biconical antenna, grating circular polarizer, cone angle has the simulation study of limit for length's biconical antenna electromagnetic property etc. arbitrarily, a lot of technology and theoretical have also all obtained breakthrough progress.But these researchs all are oriented to wherein one or only limit to the research than the low-frequency range antenna; And this problem of millimeter wave circular polarization omnidirectional antenna is the comprehensive research and development with millimeter wave omnidirectional antenna and circular polarized antenna, and other unit does not still have scientific research, the design of this project at home.
Summary of the invention
The technical problem that the utility model will solve is to lack in the prior art and can detect millimeter wave, can guarantee the omnidirectional antenna of circular polarization again.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: omnidirectional's circular polarized antenna comprises discone antenna and circular polarization cover; Discone antenna comprises upper cone, the lower cone that tip to tip is provided with, and the cable outer conductor that is connected with the lower cone bottom, and the bottom of two cones also is respectively equipped with exhibition dish, following exhibition dish; The circular polarization cover is made up of at least two polarization bar, and polarization bar two ends are fixed between the last exhibition dish and following exhibition dish of discone antenna; Aforementioned polarization bar is an arc, and upper cone is consistent with the lower cone size, and the pinnacle of two cones is located polarization bar Edge Distance and equated.
The omnidirectional antenna of available technology adopting; Like patent 200920083144 described a kind of omnidirectional antennas; Its polarization bar is rectangle; Therefore cause the discone antenna central point, does not promptly wait to polarization bar Edge Distance the bicone junction, therefore can't satisfy the requirement of indexs such as circular polarization, deviation in roundness fully.The utility model bar that will polarize is designed to arc, and the discone antenna central point is equated to polarization bar Edge Distance, thereby on the basis of omnidirectional antenna, has more effectively realized the requirement of indexs such as circular polarization, deviation in roundness.
Not yielding when guaranteeing that the polarization bar connects, be 45 ° between polarization bar two ends and last exhibition dish, the following exhibition dish and be connected.Existing rectangle polarization bar all adopts vertical the connection with discone antenna, and if arc polarization bar also adopts vertical the connection, the connection of 45 is adopted in the bar that causes easily polarizing distortion, the deviation in roundness index of whole circular polarization cover is up to standard after the bar connection that can guarantee to polarize.
The magnetic field at random of generation is to the interference of wave beam when working for reducing omnidirectional's circular polarized antenna, and the outside of last exhibition dish is provided with choke groove.Be provided with choke groove, the wave beam that omnidirectional's circular polarized antenna is produced is more level and smooth, disturbs few.
The utility model has the advantages that: simple in structure, can detect millimeter wave, guarantee to realize omnidirectional's circular polarization.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the utility model comprises discone antenna and circular polarization cover; Discone antenna comprises upper cone 1-1, the lower cone 1-2 that tip to tip is provided with; And the cable outer conductor 1-3 that is connected with lower cone 1-2 bottom; Upper cone 1-1 and lower cone 1-2 all are arranged in the phase place tube 3, and the bottom of two cones also is respectively equipped with exhibition dish 1-4, following exhibition dish 1-5; The circular polarization cover is made up of the polarization bar 2 of 12 arcs, and polarization bar 2 two ends are fixed between exhibition dish 1-4 and the following exhibition dish 1-5, and with last exhibition dish 1-4, time exhibition dish 1-5 between be 45 ° and be connected; Upper cone 1-1 is consistent with lower cone 1-2 size, and the pinnacle of two cones is located polarization bar 2 Edge Distances and equated; In addition, the outside of last exhibition dish 1-4 is provided with choke groove 1-6.
The discone antenna that the utility model adopts is an existing product.
Claims (3)
1. omnidirectional's circular polarized antenna comprises discone antenna and circular polarization cover; Discone antenna comprises upper cone, the lower cone that tip to tip is provided with, and the cable outer conductor that is connected with the lower cone bottom, and the bottom of two cones also is respectively equipped with exhibition dish, following exhibition dish; The circular polarization cover is made up of at least two polarization bar, and polarization bar two ends are fixed between the last exhibition dish and following exhibition dish of discone antenna; It is characterized in that aforementioned polarization bar is an arc, upper cone is consistent with the lower cone size, and the pinnacle of two cones is located polarization bar Edge Distance and equated.
2. based on the described omnidirectional of claim 1 circular polarized antenna, it is characterized in that, be 45 ° between polarization bar two ends and last exhibition dish, time exhibition dish and be connected.
3. omnidirectional according to claim 1 and 2 circular polarized antenna is characterized in that the outside of last exhibition dish is provided with choke groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204915073U CN202373690U (en) | 2011-12-01 | 2011-12-01 | Omni-directional circularly polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204915073U CN202373690U (en) | 2011-12-01 | 2011-12-01 | Omni-directional circularly polarized antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373690U true CN202373690U (en) | 2012-08-08 |
Family
ID=46597384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204915073U Expired - Fee Related CN202373690U (en) | 2011-12-01 | 2011-12-01 | Omni-directional circularly polarized antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373690U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785375A (en) * | 2017-01-12 | 2017-05-31 | 成都天锐通科技有限公司 | Circular polarisation omnidirectional antenna |
| GB2558365A (en) * | 2016-10-21 | 2018-07-11 | Leonardo Mw Ltd | Antenna and method of manufacture thereof |
| CN108539428A (en) * | 2018-03-27 | 2018-09-14 | 电子科技大学 | A kind of Broadband circularly polarized antenna of omnidirectional radiation |
-
2011
- 2011-12-01 CN CN2011204915073U patent/CN202373690U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2558365A (en) * | 2016-10-21 | 2018-07-11 | Leonardo Mw Ltd | Antenna and method of manufacture thereof |
| US12057638B2 (en) | 2016-10-21 | 2024-08-06 | Leonardo UK Ltd | Antenna and method of manufacture thereof |
| CN106785375A (en) * | 2017-01-12 | 2017-05-31 | 成都天锐通科技有限公司 | Circular polarisation omnidirectional antenna |
| CN108539428A (en) * | 2018-03-27 | 2018-09-14 | 电子科技大学 | A kind of Broadband circularly polarized antenna of omnidirectional radiation |
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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: 20120808 Termination date: 20181201 |