Dual-polarized corporate-feed plate-laminated waveguide slot array antenna for 60 GHz-band

摘要

Most of the studies on the dual-polarized array antennas use microstrip patches and lines because of the easy realization of the radiating elements and the feeding networks. A variety of feeding techniques to achieve high isolation and good cross-polarization have been demonstrated [1, 2]. However, most of these require double-layer or multilayer substrates and the structures are too complicated. It is still difficult to fabricate dual-polarized array antennas in mass production. Also, the microstrip antennas are not suitable in the millimeter wave bands due to the large loss of the substrates.