Top-Wall and Branch-Waveguide Hybrids for Millimeter Wavelengths,

摘要

Top-wall and multiple-branch waveguide couplers were developed as hybrid junctions for millimeter wavelengths,and their electrical characteristics were measured. For construction of the 55-GHz top-wall coupler,electroforming techniques were used;for the 94-GHz branch-guide coupler,the branch lines were cut directly into the wall of the main guide. Copper losses were less than 0.2dB for the two types of couplers. (Author)