MONOLITHIC MICROWAVE ANTENNA FEED AND METHOD OF MANUFACTURE

摘要

A microwave antenna feed arrangement provided with a unitary body (1) with a feed bore (3) between a launch end (5) and a back end (7) of the body. A plurality of coaxial annular grooves (11) are located on the launch end of the body. An OMT bore (15) in the body extends from a side (17) of the body to the feed bore. The body may be further configured with an end cap to close the back end of the feed bore or a feed elbow for dual polarization operation. The body may be manufactured for example, by machining or metal injection molding.