(under subclass 776) Subject matter wherein the plural wave guides as defined therein are combined with external conductive structure (usually metallic) which reradiates into free space impinging radio waves coming from or going to the wave guides.
SEE OR SEARCH THIS CLASS, SUBCLASS:
775, for bi-conical horn type antennas with a reflector.
780, for "pillbox" type antennas.
781, for single wave guide type antennas with an external reflector or director.
834+, and the Search Notes thereunder, for antennas with parasitic reflectors in general.
