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Broadband dual-depth E-plane corrugated square waveguide polariser

Broadband dual-depth E-plane corrugated square waveguide polariser

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© The Institution of Electrical Engineers
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The computer-aided design of a dual-depth E-plane corrugated waveguide polariser is described which achieves 90±1° differential phase shift between the TE10− and TE01− wave transmission coefficient for 11.2–14.8 GHz. The method of field expansion into suitable eigenmodes used considers the effect of higher-order-mode interaction at the step discontinuities.

References

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      • H. Patzelt , F. Arndt . Double-plane steps in rectangular waveguides and their application for transformers, irises, and filters. IEEE Trans. , 771 - 776
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      • Fasold, D., Lieke, M.: `A circularly polarised offset reflector antenna for direct broadcasting satellites', Proc. 13th European Microwave Conf., 1983, Nürnberg, p. 896–901.
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      • Adatia, N., Keen, K., Watson, B.K., Crone, C., Dang, N.: `Study of an antenna system for an experimental TV satellite', 3285/77/NL/AK(SC), ESA Contract Report, March 1979, ERA Report RFTC 420877.
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      • N. Sridhar , G.P. Srivastava . Theoretical analysis of hybrid modes in a dual-depth corrugated waveguide feed. Electron. Lett. , 793 - 794
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