FSS FEEDING NETWORK FOR A MULTI-BAND COMPACT HORN

摘要

A feed structure ( 105 ) for a horn antenna ( 100 ). The feed structure can include a first waveguide ( 110 ) and a second waveguide ( 115 ) having a first portion at least partially disposed within the first waveguide. The second waveguide also can include a second portion intersecting a first wall ( 240 ) of the first waveguide. The first wall can include a first frequency selective surface ( 244 ) at an intersection ( 280 ) of the first wall and the second portion of the second waveguide. The first waveguide can be operatively coupled to a first horn section ( 130 ) and the second portion can be operatively coupled to a second horn section ( 135 ).