Miniature, flush mounted, microwave dual band cavity backed slot antenna

摘要

A miniature, flush mounted, microwave dual band antenna which radiates omnidirectional microwave signals from a single flush mounted cylindrical array at frequency bands separated by 1.5 octaves. The antenna has a Y-shaped cavity with the leg of the Y being taken up by a probe and surrounding dielectric block. The cavity resonates the lower frequency band energy primarily in the open non-dielectric spaces and resonates the higher frequency band energy primarily in the dielectric space.