The design and test results of a Quad-ridged waveguide L-band orthomode transducer (OMT) for radio telescope are presented. This OMT achieves satisfactory performance using relatively short length ...

The design of an offset ridge quad-ridged waveguide (QRWG) orthomode transducer (OMT) is presented. By offsetting one of the ridges in the direction of propagation, a much wider single mode operating ...