Optimized 90° Polarization Shift Step Twists for Ku,K and Ka Bands |
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| Authors: | Vasilis G Salis Sotirios A Mallios Ioannis G Tigelis Aristidis S Theodorou |
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| Affiliation: | 1.Department of Physics, Applied Physics Division,Electronics Laboratory, National and Kapodistrian University of Athens,Athens,Greece;2.INTRACOM S.A.,Athens,Greece |
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| Abstract: | Optimized models for 90° polarization shift step twists for Ku, K and Ka bands are presented. The cross-section of the waveguide employed is similar to that of a rectangular one, with the difference that the walls of the shorter side are part of a circular one with the proper diameter. The optimized models have been found using the CST Microwave Studio simulation tool and in all cases the return loss is kept below -20 dB for a wide range of frequency spectrum. Two examples are given, one for Ku band and the other for K and Ka ones. |
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