ANALYSIS, DESIGN & FABRICATION OF A HIGH DIRECTIVITY COMPACT COUPLER USING 3-HOLE APERTURE ARRAY

Abstract

Aperture coupling of 2.-hole and 3..hole in broad wall waveguide coupler is analysed. The tecbflique of theoretical analysis is Verified experimentally by conducting series of experiments. Thereby an effort has been made to realize a high directivity compact multi-hole directional coupler in waveguide based on a new technique of low pass prototype filter design. the theore-tical and experimental results of the performance is presented. It has been possible by this technique to design and fabricate a compact high directivity coupler whose length is about 22- times less than that of the commercial available coupler of similar performance.