Patent ID: 9634400
Date: 2017-04-25
CPC Classifications: H01Q

Claim:
1. An antenna comprising: a main reflector having a focal region; a sub-reflector having an under-surface; a waveguide horn extending from the main reflector toward the focal region and having a distal end; a dielectric tube extending from the distal end of the waveguide horn and having a distal end supporting the sub-reflector in the focal region with the under-surface of the sub-reflector extending outward beyond the distal end of the dielectric tube, said dielectric tube having a collar extending inward about its distal end; an insert insertable into the dielectric tube to seat against the collar of the dielectric tube and having a reflector surface; and a fastener securing the insert against the collar of the dielectric tube to the sub-reflector, thereby securing the sub-reflector to the distal end of the dielectric tube with the reflector surface of the insert continuing the under-surface of the sub-reflector.