Conference paper
Demonstration of TM01 Circular Waveguide Mode in Matched Feeds for Single Offset Reflectors
Matched-feed horns can be employed to reduce the inherent cross polarization of offset reflector antennas. For circular horns, the traditional method is to excite TE21 modes in the aperture. We recently proposed that TE01 or TM01 modes can be used instead, for horizontal and vertical polarization, respectively.
To validate this, a matched feed using TMo1 is designed and demonstrated for the first time. The presented horn reduces cross polarization by 1 7 dB at the design frequency and by 10 dB over a 2.2 % bandwidth.
Language: | English |
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Publisher: | IEEE |
Year: | 2018 |
Pages: | 723-724 |
Proceedings: | 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting |
Types: | Conference paper |
DOI: | 10.1109/APUSNCURSINRSM.2018.8608885 |
ORCIDs: | Palvig, Michael Forum and Breinbjerg, Olav |