CN2619373Y - Wideband round polarized micro belt antenna - Google Patents
Wideband round polarized micro belt antenna Download PDFInfo
- Publication number
- CN2619373Y CN2619373Y CN 03230225 CN03230225U CN2619373Y CN 2619373 Y CN2619373 Y CN 2619373Y CN 03230225 CN03230225 CN 03230225 CN 03230225 U CN03230225 U CN 03230225U CN 2619373 Y CN2619373 Y CN 2619373Y
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- substrate
- antenna
- radiation ring
- radiating element
- parasitic radiation
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Abstract
The utility model discloses a broadband circular polarization microstrip antenna which is composed of a substrate, a ground floor and a radiation unit. The substrate is a flat plane. The ground floor is connected with one side of the substrate and the radiation unit is provided on the other side of the substrate. A feeding point is arranged on the radiation unit. A parasitic radiation ring is provided on the substrate. The radiation unit is provided in the parasitic radiation ring. According to antenna loading theoretic analysis and experimental tests, the increase of the parasitic radiation ring and the duality of the radiation ring and the radiation unit can lead to the increase of the bandwidth so that the working bandwidth of the antenna is widened. The bandwidth of the circular polarization working frequency band on the original antenna is increased to 2% from 1%, as a result, the need for the frequency stability of the emission source is reduced, the high need for the consistency of the antenna substrate material is reduced and the whole cost is reduced.
Description
Technical field
The utility model relates to wireless aerial, more specifically refers to a kind of broadband circularly polarization microstrip antenna.
Background technology
Circular polarization microstrip antenna is widely adopted in fields such as communication, navigation, detections.The structure of existing microstrip antenna as shown in Figure 1 and Figure 2,1 be medium substrate, 2 for circular polarization radiation unit, 3 is a distributing point, 4 is ground plane.This antenna is rectangular, because advantage such as its volume is small and exquisite, easy to make, with low cost and being used in a large number.But also there is inherent defect in existing circular polarization microstrip antenna, that is, working band is narrower, has only 1% bandwidth usually.Therefore very high to the frequency stability requirement of emission source, to antenna substrate material coherence request height, increased the complete machine cost.
Summary of the invention
The purpose of this utility model is the narrower problem of above-mentioned working band that exists at existing microstrip antenna, and a kind of broadband circularly polarization microstrip antenna is provided.
To achieve these goals, the utility model adopts following technical scheme:
This broadband circularly polarization microstrip antenna comprises substrate, ground plane, radiating element, substrate is a surface plate, ground plane adheres on the substrate one side, arrange radiating element on the another side of substrate, one distributing point is set on the radiating element, also lay the parasitic radiation ring on substrate, radiating element is positioned among the parasitic radiation ring.
Because antenna of the present utility model is laid the parasitic radiation ring again on the substrate of traditional microstrip antenna, radiating element is positioned among the parasitic radiation ring, learn by analysis of antenna loading theory and experiment test, the increase of parasitic radiation ring, mutual idol between radiation ring and the radiating element can cause bandwidth to increase, broadening the bandwidth of operation of antenna, circular polarization working band bandwidth 1% by original antenna is increased to 2% bandwidth, therefore reduced requirement, and reduced the conforming high request of antenna substrate material to the frequency stability of emission source.Thereby reduced the cost of complete machine.
Description of drawings
Fig. 1 is traditional microstrip antenna structure floor map.
Fig. 2 is the side cross-sectional schematic of Fig. 1.
Fig. 3 is the utility model microstrip antenna structure floor map.
Fig. 4 is the side cross-sectional schematic of Fig. 3.
Embodiment
See also Fig. 3, shown in Figure 4, broadband circularly polarization microstrip antenna of the present utility model comprises substrate 1, ground plane 4, radiating element 2, substrate 1 is a surface plate, ground plane 4 adheres on substrate 1 one side, arrange radiating element 2 on the another side of substrate 1, one distributing point 3 is set on the radiating element 2, different with traditional microstrip antenna is, on substrate 1, also lay parasitic radiation ring 5, parasitic radiation ring 5 is laid on the relative one side of ground plane 4 of substrate 1, with radiating element 2 on same plane, radiating element 2 is positioned among the parasitic radiation ring 5.
Described parasitic radiation ring 5 is a closed-loop.
Between described parasitic radiation ring 5 and the radiating element 2 is 0.03 λ-0.04 λ apart from the d value, and wherein, λ is the central task wavelength of microstrip antenna.
The effect of parasitic radiation ring 5 is to be used for the bandwidth of operation of broadening antenna.When making this antenna, substrate 1 useable glass fiber cloth reinforced TFE, radiating element 2 and parasitic radiation ring 5 are made at grade, can adopt common little band manufacture craft, and be as the burn into photoetching process, very convenient.Analysis of antenna loading theory and experiment test are learnt, mutual idol between parasitic radiation ring and the radiating element can cause bandwidth to increase, antenna working band bandwidth is doubled, promptly the circular polarization working band bandwidth 1% from primary antenna is increased to 2%, substantially satisfied the requirement of complete machine, had good practical value antenna.
Claims (3)
1, a kind of broadband circularly polarization microstrip antenna, this antenna comprises substrate, ground plane, radiating element, substrate is a surface plate, ground plane adheres on the substrate one side, arrange radiating element on the another side of substrate, one distributing point is set on the radiating element, it is characterized in that: also lay the parasitic radiation ring on substrate, radiating element is positioned among the parasitic radiation ring.
2, broadband circularly polarization microstrip antenna as claimed in claim 1 is characterized in that: described parasitic radiation ring is a closed-loop.
3, broadband circularly polarization microstrip antenna as claimed in claim 1 or 2 is characterized in that: between described parasitic radiation ring and the radiating element is 0.03 λ-0.04 λ apart from d, and λ is the central task wavelength of microstrip antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230225 CN2619373Y (en) | 2003-04-11 | 2003-04-11 | Wideband round polarized micro belt antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230225 CN2619373Y (en) | 2003-04-11 | 2003-04-11 | Wideband round polarized micro belt antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2619373Y true CN2619373Y (en) | 2004-06-02 |
Family
ID=34247528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03230225 Expired - Fee Related CN2619373Y (en) | 2003-04-11 | 2003-04-11 | Wideband round polarized micro belt antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2619373Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428565C (en) * | 2005-02-18 | 2008-10-22 | 中国科学院上海微系统与信息技术研究所 | High dielectric constant circular polarized UHF antenna and preparation method thereof |
| CN101232121B (en) * | 2007-01-23 | 2011-08-10 | 连展科技电子（昆山）有限公司 | Circular polarization aerial |
| CN103414014A (en) * | 2013-08-06 | 2013-11-27 | 李章焕 | Antenna |
| CN113711441A (en) * | 2019-04-26 | 2021-11-26 | 日本电业工作株式会社 | Antenna device |
-
2003
- 2003-04-11 CN CN 03230225 patent/CN2619373Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428565C (en) * | 2005-02-18 | 2008-10-22 | 中国科学院上海微系统与信息技术研究所 | High dielectric constant circular polarized UHF antenna and preparation method thereof |
| CN101232121B (en) * | 2007-01-23 | 2011-08-10 | 连展科技电子（昆山）有限公司 | Circular polarization aerial |
| CN103414014A (en) * | 2013-08-06 | 2013-11-27 | 李章焕 | Antenna |
| CN103414014B (en) * | 2013-08-06 | 2016-02-24 | 李章焕 | A kind of antenna |
| CN113711441A (en) * | 2019-04-26 | 2021-11-26 | 日本电业工作株式会社 | Antenna device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040602 Termination date: 20100411 |