Title :
Wide-band orthomode transducers
Author :
Skinner, Stephen J. ; James, Graeme L.
Author_Institution :
CSIRO, Epping, NSW, Australia
fDate :
2/1/1991 12:00:00 AM
Abstract :
A summary of the results of a mainly experimental investigation into the development of wideband orthomode transducers (OMTs) is presented. It is shown that satisfactory performance for many applications is possible over bandwidths in excess of 2:1. The wideband return loss and cross-polarization behavior are given where the OMT used is measured in conjunction with a wideband corrugated horn. Two types of OMT are considered: one based on a finline technique and the other on a quad-ridged waveguide geometry. Overall, the latter design gives superior performance
Keywords :
electromagnetic wave polarisation; fin lines; losses; transducers; waveguide components; cross-polarization; finline technique; finline type; orthomode transducers; quad-ridged waveguide geometry; return loss; wideband; Australia; Bandwidth; Feeds; Finline; Geometry; Polarization; Radio astronomy; Rectangular waveguides; Transducers; Wideband;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
