A waveguide antenna

Abstract

The utility model relates to a waveguide antenna. The utility model discloses a structural member, horizontal polarization antenna is set up in the structural member, two groups of choke structure are symmetrically set up in the both sides of horizontal polarization antenna, and each choke structure includes the inside choke groove, choke bulge, outside choke groove that are set up on the surface of same structural member in the direction of away from horizontal polarization antenna direction in proper order, the inside choke groove and outside choke groove are concave respectively in the surface of structural member, and the choke bulge is convex in the surface of structural member, wherein, horizontal polarization electromagnetic wave is emitted by horizontal polarization antenna, and after passing through the inside choke groove, the choke bulge and outside choke groove, radiates outward. The utility model will concentrate energy in the area that actually needs to detect the key, more fit angle radar installation in the scene demand of vehicle corner, help to improve the detection performance, and have low loss, easy processing, the characteristics of good performance.

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