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Chiral mode transformer for soft- and hard-surface waveguides

✍ Scribed by Ari J. Viitanen

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
136 KB
Volume
32
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

Electromagnetic fields inside circular, tuned corrugated waveguides, also called soft‐ and hard‐surface waveguides, are considered. The waveguides are filled with chiral material. The propagating eigenfields are presented. In this paper, a recently studied case with small chirality parameter values is generalized. Also, reflected and transmitted fields are considered. It is shown that the chiral soft‐ and hard‐surface waveguide section of a proper length can be used as a mode transformer between TE and TM modes. This kind of waveguide component may be used as a matching element between different kinds of circular waveguides and antenna elements. © 2002 John Wiley & Sons, Inc. Microwave Opt Technol Lett 32: 95–99, 2002.

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## Abstract Soft and hard walls are realized for a circular waveguide with walls coated by a uniform dielectric layer of appropriate thickness and loaded with conducting strips. The strips are oriented along the waveguide axis (__z__‐axis) for hard surfaces or φ‐directed for soft surfaces in a peri