EQUIVALENT-CIRCUIT OF A NARROW-WALL WAVEGUIDE SLOT COUPLER

A expression for the equivalent network of a long axial slot In the common narrow wall between two rectangular waveguides is determined from self -reaction and discontinuity in modal current. The analysis is extended to the case of H-plane Tee junction coupled through a longitudinal slot in the narrow wall of primary guide. Variation of coupling, input VSWR, and impedance loading on the primary guide are determined from the equivalent network parameter. A comparison between theoretical and experimental results is presented. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.