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Broadband omnidirectional circularly polarized antenna

A circularly polarized antenna and broadband technology, applied to antennas, devices that enable antennas to work in different bands at the same time, electrical components, etc., can solve the problems of narrow operating bandwidth, difficult engineering, and circular polarization forms Unable to switch and other problems, to achieve good engineering characteristics, simple structure, and improve the effect of out-of-roundness

Pending Publication Date: 2022-08-02
西安矩阵无线科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem solved by the technology of the present invention is: the existing omnidirectional circularly polarized antenna has a narrow working bandwidth, relatively difficult engineering, and the problem that the circularly polarized form cannot be switched

Method used

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  • Broadband omnidirectional circularly polarized antenna
  • Broadband omnidirectional circularly polarized antenna
  • Broadband omnidirectional circularly polarized antenna

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Embodiment Construction

[0034] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0035] In the present invention, unless stated to the contrary, the use of directional words such as "inside, outside" generally refers to the inside and outside of the contour of the corresponding object. Orientation words such as "up, down, left and right, front and back" are usually used to refer to the up, down, left, and front of the corresponding object.

[0036] like figure 1As shown, a broadband omnidirectional circularly polarized antenna provided by the present invention includes: a feeding network 1 , which is realized by a high-frequency microwave board, and is composed of a power divider 11 and a broadband balun 12 . Power divider 11, the power divider 11 ...

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Abstract

The invention relates to a broadband omnidirectional circularly polarized antenna, and relates to the technical field of antennas. The antenna is composed of a feed part, a radiation part and a structure supporting part. The feed part comprises a feed network, a power divider, a broadband balun, a probe and a radio frequency connector; the radiation part comprises a horizontal radiation oscillator and a vertical radiation oscillator; the structure supporting part comprises a supporting column and a bottom plate. A plurality of groups of horizontal radiation oscillators and vertical radiation oscillators are adopted, so that horizontal omnidirectional circular polarization can be realized; the horizontal radiation oscillator has horizontal omnidirectional radiation performance, and an electric field is horizontally polarized; the vertical radiation oscillator has horizontal omnidirectional radiation performance, and an electric field is vertically polarized; and the two are shared to form horizontal omnidirectional radiation performance, and polarization is circular polarization. By changing the positions of the upper and lower metal bar-shaped structures of each group of vertical radiation oscillators, the left-handed / right-handed circular polarization characteristics can be flexibly switched. Meanwhile, a plurality of groups of horizontal radiation oscillators and vertical radiation oscillators are combined, so that the out-of-roundness of a directional diagram of the antenna can be improved.

Description

technical field [0001] The present invention relates to the technical field of antennas, in particular to the technical field of broadband, omnidirectional and circularly polarized antennas. Background technique [0002] Existing omnidirectional circularly polarized antennas have many implementation forms, which can be basically divided into three implementations: helical form, omnidirectional linear polarization and circular polarizer form, and electric dipole form. For example, in the patent "An omnidirectional circularly polarized helical antenna with a folded structure" (application number: 202110430312.6), the antenna adopts a normal mode helical form, and the working bandwidth of the antenna is improved by adding a helical folded structure at the head and tail of the helix. The electrical performance of the normal mode helical antenna is mainly determined by the pitch, diameter and number of winding turns of the helix, and is more sensitive to the relevant size; the ov...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q5/30H01Q5/50H01Q15/24
CPCH01Q1/36H01Q15/242H01Q5/30H01Q5/50
Inventor 朱瑞龙吴元元曹诞张文张怡萍贾朝锋
Owner 西安矩阵无线科技有限公司
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