Mode degeneracy in circular cylindrical ridge waveguides

A. J. Sangster, J. Grant

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Studies of dual channel, polarisation agile, quad-ridge and octo-ridge feeds suggest that mode degeneracy in multi-ridge structures severely constricts operational bandwidths, for a large range of ridge dimensions. Mode characteristics in dual-ridge, quad-ridge and octoridge waveguide are examined in this paper, with a view to identifying both the nature of the degeneracy, and its implications for bandwidth. The results presented have been generated using a full-wave finite element electromagnetic field simulator.

Original languageEnglish
Pages (from-to)75-83
Number of pages9
JournalProgress In Electromagnetics Research Letters
Volume9
Publication statusPublished - 2009

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