Design of an 89-183GHz Cold Optical and Quasi-Optical System

According to the basic principles of quasi-optical and gaussian beam, the quasi-optical mirror and lens are studied, and a set of millimeter-wave antenna quasi-optical feed system is designed, which can realize two channels of 89–183 GHz to receive electromagnetic radiation signals at the same time. The quasi-optical calculation and preliminary results are completed. The system works in low-temperature Dewar, in view of the actual needs, the locations and beam radius of the quasi-optical device are constrained and continuously optimized.