The effect of standing waves on the attenuation constant for a low‐loss rectangular waveguide

Abstract When standing waves are present in a rectangular waveguide, the resistive losses in the walls are not uniformly distributed. This affects the measurement of the attenuation constant. Here the phenomenon for the TE10 mode in air‐filled waveguide, where the deviation from the normal travellin...

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Bibliographic Details
Main Authors: Richard J. Collier, Nick M. Ridler, Paul R. Young
Format: Article
Language:English
Published: Wiley 2021-04-01
Series:Electronics Letters
Subjects:
Online Access:https://doi.org/10.1049/ell2.12017
Description
Summary:Abstract When standing waves are present in a rectangular waveguide, the resistive losses in the walls are not uniformly distributed. This affects the measurement of the attenuation constant. Here the phenomenon for the TE10 mode in air‐filled waveguide, where the deviation from the normal travelling wave attenuation constant is only about ±1% over the conventional bandwidth, is discussed. However, the paper also shows that nearer the cut‐off frequency for the waveguide, the deviation could be as high as ±100%.
ISSN:0013-5194
1350-911X