Patent ID: 8860532

Claim:
An integrated cavity filter/antenna system, comprising: a substrate; a cavity filter formed in or on said substrate, comprising: a first cavity resonator in or on said substrate, said first cavity resonator comprising a first 3D cavity enclosed by metal walls providing a first transmission pole; at least a second cavity resonator formed in or on said substrate, said second cavity resonator comprising a second 3D cavity enclosed by metal walls providing a second transmission pole; an inter-resonator coupling structure in or on said substrate for coupling energy between said first cavity resonator and said second cavity resonator configured so that said first cavity resonator maintains said first transmission pole, and said second cavity resonator maintains said second transmission pole, an antenna integrated with one of said first and second cavity resonators so that said antenna acts as both a port of said cavity filter and as a radiating element, and at least one connector coupled to said first or said second cavity resonator for coupling energy into said filter/antenna system, wherein said metal walls include subwavelength spaced metal via sidewalls for said first resonator and said second cavity resonator, and said inter-resonator coupling structures comprise irises in said metal walls.