Patent ID: 7928919

Claim:
A method for fabricating a microwave horn antenna comprising the steps of: forming at least a portion of a horn and at least a portion of a microwave guide channel in a first thermoplastic section having a planar surface, said portions of said horn and said microwave guide channel in said first section being open to said first section planar surface, forming at least a portion of a horn and at least a portion of a microwave guide channel in a second thermoplastic section having a planar surface, said portions of said horn and said microwave guide channel in said second section being open to said second section planar surface, coating said portions of said horn and said microwave guide channels on both said first and second sections with a metal, attaching said first and second sections together with said first section planar surface and said second surface planar section flatly abutting against each other and so that said portions of said horn and said portions of said microwave guide channels in said first and second sections register with each other.