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 circularly polarized microstrip antenna with simple structure, small envelope size, easy processing, manufacturing and assembly, and good rotational symmetry in the hemispherical space, this invention using parasitic feed metal Post microstrip antenna. On the basis of the double-feed point circularly polarized microstrip antenna, the present invention creatively applies the parasitic feed metal post, and obtains the radiation characteristics of a four-feed point microstrip antenna, which has a relatively rotationally symmetrical pattern and a high Low elevation gain, meeting the requirements of hemispherical space coverage, and the feed network is simple, easy to process and assemble. The parasitic feed metal post is not a short-circuit metal post, it is electrically isolated from the metal floor of the antenna, and is not electrically connected to the power divider, and only generates an induction fiel...
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