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Mode Converter Optimization for U-Style Rotary Joint
Dong-Hyun KIM Jeong-Woo JWA Doo-Yeong YANG
Publication
IEICE TRANSACTIONS on Electronics
Vol.E89-C
No.11
pp.1708-1712 Publication Date: 2006/11/01 Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.11.1708 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Microwaves, Millimeter-Waves Keyword: H10-to-E01 mode converter, waveguide rotary joint, right-angle E-plane junction (RAJ), conjugate matching condition,
Full Text: PDF(257.8KB)>>
Summary:
This paper describes optimization of H10-to- E01 mode converter by way of a right-angle E-plane junction (RAJ) between a rectangular waveguide and a circular waveguide in a waveguide rotary joint. Requirements for the optimized mode converter are formulated to provide the conjugate matching condition and analytical formulas for the rotary joint. A novel design procedure of the mode converter is proposed. An excellent performance of the mode converter fabricated for the Ka-band rotary joint is proved by computer simulation and the experimental results. The return loss and the insertion loss rotational effect are less than -25 dB and 0.02 dB in the 10% bandwidth, respectively.
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