Broadband offset quad-ridged waveguide orthomode transducer
Date
2009
Authors
De Villiers D.I.L.
Meyer P.
Palmer K.D.
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Abstract
The design and measurement of an offset quad-ridge waveguide orthomode transducer (OMT) are presented. The transducer comprises two orthogonal ridges inserted in a square waveguide, with one ridge offset in the propagation direction to greatly increase the singlemode operating bandwidth of the structure. Measurements of an OMT designed to operate across the 2.4-4GHz band show a return loss of better than -20dB for both polarisations and cross-coupling levels of below -40dB over most of the required band. © 2009 The Institution of Engineering and Technology.
Description
Keywords
Telecommunication systems, Transducers, Cross couplings, Operating bandwidths, Orthomode transducers, Propagation directions, Return losses, Ridge waveguides, Ridged waveguides, Square waveguides, Waveguides
Citation
Electronics Letters
45
1
45
1