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Plane aperture-symmetric ring combined antenna with circularly-polarized end emission characteristics

A combined antenna and circular polarization technology, applied in the microwave field, can solve the problems of unfavorable planar integration and small-scale applications, and achieve the effect of low cost and simple manufacturing process

Active Publication Date: 2015-05-13
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, they belong to three-dimensional structures, which are not conducive to planar integration and small applications

Method used

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  • Plane aperture-symmetric ring combined antenna with circularly-polarized end emission characteristics
  • Plane aperture-symmetric ring combined antenna with circularly-polarized end emission characteristics
  • Plane aperture-symmetric ring combined antenna with circularly-polarized end emission characteristics

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with th...

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Abstract

The invention discloses a plane aperture-symmetric ring combined antenna with circularly-polarized end emission characteristics, and belongs to the technical field of microwave. The plane aperture-symmetric ring combined antenna is that top layer and bottom layer antipodal semi-loop radiation units and top layer and bottom layer phase conversion branches are respectively designed on a dielectric substrate, wherein the top layer and bottom layer antipodal semi-loop radiation units and the top layer and bottom layer phase conversion branches have the same design structure and are reversely symmetrically arranged; a non-totally-closed resonant cavity connected with the top layer and bottom layer phase conversion branches is introduced; the top layer and bottom layer antipodal semi-loop radiation units are connected through a metalizing through hole to form a symmetric ring which is combined with the introduced resonant cavity through the phase conversion branches to form a complete antenna unit; the aperture of the resonant cavity can be equivalent to a magnetic doublet which is horizontally positioned; the circular ring is equivalent to another magnetic doublet which is vertically positioned; the two magnetic doublets are positioned with the same address, and the 90-degree phase difference feed is achieved through the phase conversion branches, so that the antenna has the circularly-polarized directional radiation characteristics. The plane aperture-symmetric ring combined antenna with the circularly-polarized end emission characteristics has the characteristics of being simple in structure, low in section, small in size, and low in manufacturing cost.

Description

technical field [0001] The invention relates to a plane aperture-symmetrical loop combined antenna with circular polarization end-fire characteristics, which belongs to the field of microwave technology. Background technique [0002] Research on circularly polarized antennas dates back to 1940. Because the circularly polarized antenna can resist the interference of rainfall and can accept waves of any polarization, the circularly polarized waves radiated by the circularly polarized antenna can also be received by the antenna of any polarization, and it can be realized without complex tracking system Therefore, it has broad application prospects in many fields such as RFID, wireless communication, and satellite communication. [0003] At present, the production of circularly polarized antennas can be roughly divided into three methods: [0004] The first method is to generate two polarized and phase-orthogonal modes to achieve circular polarization; [0005] The second met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q7/00
Inventor 吕文俊史精文朱洪波
Owner NANJING UNIV OF POSTS & TELECOMM
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