초록

A down link UHF antenna is designed which includes four equispaced arms metal plated at an angle on a fiberglass cylinder. A coaxial connector is connected to each of the four arms with the metal plated inner surface as the common ground.

대표청구항 ▼

An Around-A-Mast quadrifilar microstrip antenna for the periscope of a submarine which comprises: a cylinder of a non-conductive material having metal plated at the top, bottom and inner surfaces thereof and forming a common ground plane from the top, bottom and inner surfaces; a plurality of genera

An Around-A-Mast quadrifilar microstrip antenna for the periscope of a submarine which comprises: a cylinder of a non-conductive material having metal plated at the top, bottom and inner surfaces thereof and forming a common ground plane from the top, bottom and inner surfaces; a plurality of generally parallel conductive bands electrically isolated from said common ground plane on the outer surface of said cylinder; connecting means for each member of said plurality of conductive bands on the outer surface of said cylinder; and matching networks for delaying appropriately the outputs from each member of said plurality of conductive bands on the outer surface of said cylinder.