Microstrip antenna using parasitical feed metal columns
A technology of parasitic feeding and microstrip antenna, which is applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., which can solve the problem of poor rotational symmetry of radiation pattern, failure to meet the requirements of hemispherical space coverage, and insufficient feed position. Balance and other issues, to achieve the effect of improving rotational symmetry, improving circular polarization performance, and flexible position
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[0037] The basic idea of the present invention: In order to develop a new type of circularly polarized microstrip antenna with simple structure, small envelope size, easy processing, manufacturing and assembly, and good rotational symmetry in the hemispherical space, this kind of application parasitic feed metal was invented Column of microstrip antenna. The present invention creatively applies the parasitic feeding metal column on the basis of the double-feed point circularly polarized microstrip antenna, and obtains the radiation characteristics of the four-feed point microstrip antenna. It has a relatively rotationally symmetrical pattern and higher The low elevation angle gain meets the requirements of hemispherical space coverage, and the feed network is simple, and the processing and assembly are easy. The parasitic feeding metal pillar is not a short-circuit metal pillar. It is electrically isolated from the antenna metal floor and is not electrically connected to the ...
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