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Analysis of mode conversion phenomena in a non‐uniform parallel plate wave guide (Summary)
Author(s) -
Henrot Denis M.,
Wait James R.
Publication year - 1982
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs017i002p00337
Subject(s) - mode (computer interface) , electrical impedance , modal , extension (predicate logic) , amplitude , mathematical analysis , order (exchange) , matching (statistics) , physics , mathematics , optics , computer science , materials science , quantum mechanics , statistics , finance , polymer chemistry , economics , programming language , operating system
A coupled mode analysis of a parallel plate wave guide with non‐uniform impedance boundaries is presented. Closed form solutions for the first order estimates of the modal amplitude coefficients are obtained assuming small variations. An analytical comparison with an exact mode‐matching solution in the case of a stepwise change of the lower wall impedance is given and verified numerically. As an extension of the method, a wave guide with perfectly conducting but rough walls is analyzed. The possibility of selective mode coupling is pointed out. Full article is available on microfiche. Order from American Geophysical Union, 2000 Florida Avenue, N.W., Washington, D. C. 20009. Document S81‐002; $1.00. Payment must accompany order.