Folded Fabry–Perot Quasi-Optical Ring Resonator Diplexer: Theory and Experiment

Performance of folded Fabry–Perot quasi-optical ring resonator diplexers with different geometries of reflecting surfaces is investigated both theoretically and experimentally. Design of optimum surface geometry for minimum diffraction, together with the figure of merit indicating improvement in performance, are given. Copyright © 1983 by The Institute of Electrical and Electronics Engineers, Inc.