| 摘要 |
A feed horn employing a novel compensator design which substantially reduces off-axis cross polarized components of circularly polarized energy over a wide range of angular directions. The compensator comprises a plurality of L-shaped compensating conductors (22) disposed in a generally symmetrical fashion about a longitudinal axis of the feed horn (10). The conductors (22) extend inwardly from the output aperture (18) of the feed horn (10) and then radially outwards a predetermined distance away from the axis toward the horn sidewall. The conductors (22) are disposed at an angle relative to the axis, which angle is generally defined by an cone whose apex is the same as the apex of the feed horn. A nonconducting support structure (20) supports the conductors (22) within the feed horn (10). A dielectric matching member (26) is disposed in the feed horn (10) to eliminate unwanted energy reflections. |
