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Broadband wide-angle omni-directional circularly-polarized antenna

A technology of circularly polarized antenna and wide bandwidth, which is applied in the field of omnidirectional circularly polarized antenna with wide bandwidth angle, and achieves the effect of ingenious design and reasonable structure

Inactive Publication Date: 2017-01-11
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the existing omnidirectional circularly polarized antenna cannot realize omnidirectional circularly polarized on a multi-azimuth plane, the present invention provides a wide bandwidth angle omnidirectional circularly polarized antenna

Method used

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  • Broadband wide-angle omni-directional circularly-polarized antenna
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  • Broadband wide-angle omni-directional circularly-polarized antenna

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Embodiment Construction

[0033] An omnidirectional circularly polarized antenna with a wide bandwidth angle, comprising a circular radiation patch 1, a dielectric substrate 2, and a circular ground plate 3;

[0034] Among them, the circular radiation patch 1 and the circular ground plate 3 are attached to the upper surface and the lower surface of the dielectric substrate 2 respectively; the axis of the circular radiation patch 1, the axis of the dielectric substrate 2, and the axis of the circular ground plate 3 overlap;

[0035] The edge of the circular radiation patch 1 is extended with M upper-layer curved branches 4; each upper-layer curved branch 4 consists of a strip-like microstrip line extending radially and an arc-shaped stub extending clockwise in the circumferential direction Composition: each upper-layer curved branch 4 is mounted on the upper surface of the dielectric substrate 2, and each upper-layer curved branch 4 is arranged equidistantly along the circumferential direction;

[0036...

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Abstract

The invention relates an omni-directional circularly-polarized antenna, specifically a broadband wide-angle omni-directional circularly-polarized antenna. The antenna solves the problem that existing omni-directional circularly-polarized antenna cannot realize omni-directional polarization on multi-azimuth plane. The broadband wide-angle omni-directional circularly-polarized antenna comprises a round radiation plaster, a medium baseplate and a circular grounding plate, wherein the edges of circular radiation plaster and the circular grounding plate are provided with M upper and lower bending branches; each upper bending branch is composed of a micro-strip line extending along radial direction and an arc short section line clockwise extending along circumferential direction; each lower bending branch is composed a micro-strip line extending along radial direction and an arc short section line anticlockwise extending along circumferential direction; the included angle between the micro-strip lines of upper and lower bending branches is Alpha; N short-circuit via holes in isometric arrangement along circumferential direction are set between the circular radiation plaster and the circular grounding plate. The invention is applicable to wireless communication.

Description

technical field [0001] The invention relates to an omnidirectional circularly polarized antenna, in particular to a wide bandwidth angle omnidirectional circularly polarized antenna. Background technique [0002] With the development of wireless communication technology, it is difficult for a purely linearly polarized antenna to meet the needs of the society, while an omnidirectional circularly polarized antenna has the characteristics of anti-multipath fading and strong anti-interference ability, and can be widely used in remote sensing, telemetry, radar, etc. , electronic interference and many other fields. In addition, due to the omnidirectional radiation characteristics and circular polarization performance of the omnidirectional circularly polarized antenna, it can be applied to high-speed moving or rotating communication equipment. It can be seen that the omnidirectional circularly polarized antenna has broad application prospects. [0003] At present, there are two ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q13/08
CPCH01Q1/38H01Q1/50H01Q13/08
Inventor 张文梅陈雪陈新伟韩国瑞李莉杨荣草
Owner SHANXI UNIV
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