✦ LIBER ✦

A simple estimate for cut-off wave number of lowest-order TM mode of a hollow metallic waveguide of arbitrary cross-section

✍ Scribed by Qinhong Zheng; Li Ma; Fuyao Xie; Jingtian Li

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 97 KB
Volume: 10
Category: Article
ISSN: 1096-4290
DOI: 10.1002/(sici)1099-047x(200005)10:3<159::aid-mmce3>3.0.co;2-l

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✦ Synopsis

Based on two inequalities, it is presented that the cut-off wave number of the ( ) lowest order transverse magnetic TM mode of a hollow metallic waveguide of arbitrary cross-section is a function of the area, the perimeter and the inscribed circle radius. The results obtained by the derived formulas are compared with exact data reported in the literature. It shows that the proposed method is the reliable general purpose tool for computing the cut-off wave number of the lowest order TM mode of a hollow metallic waveguide of arbitrary cross-section.