Title :
Cutoff and bandwidth characteristics of a circular coaxial waveguide with four T-septa symmetrically placed in the inner conductor
Author_Institution :
Dept. of Telecomun. & Ind. Phys., CSIRO, Epping, NSW, Australia
fDate :
8/1/1998 12:00:00 AM
Abstract :
A circular coaxial waveguide with four T-septa symmetrically placed in the inner conductor is proposed for further improving the bandwidth of the diplexers designed for diplexing signals from an ultrawide, dual-band horn. The cutoff and bandwidth characteristics of the new structure are analysed using the Ritz-Galerkin method, modified for a circular structure, and compared with those of the corresponding ridged structure. The advantages of the new proposed structure are described
Keywords :
Galerkin method; antenna accessories; circular waveguides; coaxial waveguides; horn antennas; multiplexing equipment; waveguide theory; Ritz-Galerkin method; T-septa; bandwidth characteristics; circular coaxial waveguide; cutoff wavelength; diplexers; inner conductor; ridged structure; ultrawide dual-band horn antenna;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19981941
