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电信和无线电工程
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v55.i6-7.80
6 pages

Optimization of the Sectionalized Taper for Quasioptical Waveguides

V. K. Kiseliov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine; V.N.Karazin Kharkiv National University 4, Svobody sq., 61022, Kharkiv, Ukraine

ABSTRACT

Reported here are experimentally obtained amplitude-frequency and polarization characteristics of the optimum sectionalized waveguide taper (OSWT) intended for broadband coupling of quasioptical circular-section transmission lines of type of "hollow dielectric waveguide" (HDW). Due to a simple shape of the OSWT section like truncated circular cones, all the advantages of mechanical simplicity are offered. The design relations are validated by their translating into an HDW-based four-section OSWT, with being tested over a broad wave region 2.5-8.0 mm. It is shown that keeping the broadbandness and low depolarization value of the ordinary linear taper, the OSWT geometry essentially reduces the transition region extension. Besides, even if having only a few section, the OSWT practically amounts to the ideal parabolic taper in performance and, with its simple shape, derives the benefit from the incomparably easier manufacture.


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