Dual polarization quasi-optical beam divider and its application to a millimeter wave diplexer

A dual-polarization wire grid beam divider has been developed. This beam divider features simultaneous uniaxial dual-polarization operation, broad instantaneous coupling bandwidth, beam wave front preservation, and ease of fabrication. This paper describes a beam divider for 95 GHz, gives construction details, and presents a dual-polarization local oscillator injection diplexer as a typical example of a beam divider application.