Title :
Design of a wideband compact square waveguide polariser
Author :
Arndt, F. ; Tucholke, W. ; Wriedt, T.
Author_Institution :
University of Bremen, Microwave Department, Bremen, West Germany
Abstract :
The computer-optimised design of a compact exponentially profiled E-plane depth corrugated square waveguide polariser is described which achieves 90°±2° differential phase shift between the TE10- and TE01-wave for 11.8¿12.5 GHz and 17.1¿18.1 GHz. The input VSWR is better than 1.02 and 1.016 for the TE10- and TE01-wave incidences, respectively, between 10.3 and 18.8 GHz. The method of field expansion into suitable eigenmodes used considers the effect of higher-order mode interaction at all step discontinuities.
Keywords :
electromagnetic wave polarisation; microwave devices; optimisation; waveguide components; 11.8 to 12.5 Ghz; 17.1 to 18.1 GHz; E-plane depth corrugated type; EM wave polarisation; SHF; TE01-wave incidences; TE10 wave; compact device; computer-optimised design; eigenmodes; exponential profile; field expansion; higher-order mode interaction; microwave devices; square waveguide polariser; step discontinuities; wideband;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850365
