Abstract
Modeling and analysis of rectangular waveguide fed round end slots with two different sets of curvatures at the ends are presented in this paper. Performance characteristics of a waveguide slot radiator with transverse wall round end radiating slot and a 2-port waveguide junction with a round end coupling slot in the common cross-section of the rectangular waveguide are evaluated by the method of moments for three different slot models considered – namely, the rectangular end slot, round end slots of Type 1 and Type 2 curvatures. The analysis and formulations have been carried out by considering the thick radiating/coupling slot as a stub waveguide. Entire sinusoidal basis functions and Galerkin’s type of inner product are implemented. The variation of the performance characteristics obtained for the different slot models are compared with experimental results for transverse wall slot radiators and slot coupled junctions.
Published Version
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