Broadband Parabolic Antenna Feed for Air-to-Air Missile Radar Seeker

Abstract

The invention belongs to the radar technology, and relates to the improvement of the feed source of the broadband parabolic antenna of the air-to-air missile radar seeker. It includes a feed source composed of four double-ridged horn antennas with the same structure. The double ridges of the horn extend out of the horn mouth surface, and the protruding height h=2~5mm. The ridge curve equation of each double ridge horn greatly reduces the size of the mouth surface of each double ridge horn in the present invention, reducing the size of the horn mouth surface. Shading, which improves antenna efficiency and facilitates use on small missiles.

Description

Broadband Parabolic Antenna Feed Source for Air-to-Air Missile Radar Seeker technical field The invention belongs to the radar technology, and relates to the improvement of the feed source of the broadband parabolic antenna of the air-to-air missile radar seeker. Background technique Broadband parabolic antenna feed consisting of conventional four ridged horns, the upper edge of the double ridges in each ridged horn being coplanar with the horn mouth face. The disadvantage is that the size of the bell mouth surface is large. Since the wide side size of the bell mouth surface must be greater than half of the maximum operating wavelength, it is difficult to reduce the size of the bell mouth surface, which will cause a large shielding of electromagnetic waves and reduce the antenna efficiency. And due to its large size and weight, it is not conducive to use on small missiles. Contents of the invention The purpose of the present invention is to propose a wide-band paraboli...

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Problems solved by technology

The disadvantage is: the size of the bell mouth surface is large. Since the wide side of the bell mouth surface must be larger than half of the maximum operating wavelength, it is difficult to reduce the...

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