A Feeding Method to Excite D-band Dual-polarized Lens Antenna

Abstract

In this paper, a new feeding method is proposed to excite a lens antenna in terahertz band. We introduce a dual-polarized (DP) feeding source and a two-port metal adaptor, contributing to a high gain lens excitation. The feeding source provides wideband DP radiation, which can be a feed to excite a lens. For measurement purposes, a two-port metallic adaptor is proposed for providing connection between the source and the flange of waveguide to the equipment. For validation, a DP lens antenna based on LTCC technology is designed and simulated, by using the proposed feeding source and metal adaptor, high gain and wideband DP radiation can be realized.