Patent ID: 7102581

Claim:
A multiband waveguide reflector antenna feed comprising a plurality of circular waveguide feeds disposed in a concentric architecture said plurality of waveguide feeds comprising: a band 1 waveguide feed disposed in a center of the multiband waveguide reflector antenna feed; a band 2 waveguide feed disposed in a concentric ring around the band 1 waveguide feed and operating as a coaxial waveguide with an outer surface of the band 1 waveguide feed as a band 2 inner conductor; a band 3 waveguide feed disposed in a concentric ring around the band 2 waveguide feed and operating as a coaxial waveguide with an outer surface of the band 2 waveguide feed as a band 3 inner conductor; and a band 4 waveguide feed disposed in a concentric around the band 3 waveguide feed and operating as a coaxial waveguide feed with an outer surface of the band 3 waveguide feed as a band 4 inner conductor.