A 585 GHz annular-slot antenna coupled two-dimensional (two-D) focal-plane array utilizing twin-HEB devices

We report on the design and fabrication of 585 GHz focal-plane arrays utilizing annular-slot antennas and twin-HEB devices. Design details and simulation results are presented. DC characteristics of the twin-HEB devices, including R-T and I-V curves, have been tested. In addition, initial RF measurement results of the focal-plane array (FPA) mixers are presented.