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Progress In Electromagnetics Research
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NOVEL COMPACT WAVEGUIDE DUAL CIRCULAR POLARIZER

By C. Chang, S. G. Tantawi, S. Church, J. Neilson, and P. V. Larkoski

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Abstract:
A novel type of dual circular polarizer for simultaneously receiving and transmitting right-hand and left-hand circularly polarized waves is developed and tested. It consists of a H-plane T junction of rectangular waveguide, one circular waveguide as an E-plane arm located on top of the junction, and two metallic pins used for matching. The theoretical analysis and design of the three-physical-port and four-mode polarizer were researched by solving Scattering-Matrix of the network and using a full-wave electromagnetic simulation tool. The optimized polarizer has the advantages of a very compact size with a volume smaller than 0.8λ3, low complexity and manufacturing cost. A couple of the polarizer has been manufactured and tested, and the experimental results are basically consistent with the theories.

Citation:
C. Chang, S. G. Tantawi, S. Church, J. Neilson, and P. V. Larkoski, "Novel Compact Waveguide Dual Circular Polarizer," Progress In Electromagnetics Research, Vol. 136, 1-16, 2013.
doi:10.2528/PIER12121003
http://www.jpier.org/PIER/pier.php?paper=12121003

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