Title :
Technical memorandum. Cutoff frequencies of waveguides of arbitrary cross-section: optimisation of kohn-kato bounds
Author :
Laura, P.A.A. ; Cort¿¿nez, V.H.
Author_Institution :
Institute of Applied Mechanics, Punta Alta, Argentina
fDate :
4/1/1987 12:00:00 AM
Abstract :
It is shown that the results obtained by the Kohn-Kato enclosure theorem in the case of hollow-piped waveguides of complicated boundary shape can be optimised if an exponential unknown parameter is included in the co-ordinate functions which satisfy identically the governing boundary conditions, once the given domain is transformed into a unit circle.
Keywords :
optimisation; waveguide theory; Kohn-Kato bounds; arbitrary cross-section; coordinate functions; cutoff frequencies; enclosure theorem; exponential unknown parameter; hollow-piped waveguides; optimisation;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings H
DOI :
10.1049/ip-h-2.1987.0042
