Premium
Field‐theory analysis of cross‐iris coupling in circular waveguide resonators
Author(s) -
Zapata J.,
Garcia J.,
Valor L.,
Garai J. M.
Publication year - 1993
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650061612
Subject(s) - iris (biosensor) , aperture (computer memory) , finite element method , waveguide , coupling (piping) , resonator , optics , mode (computer interface) , acoustics , matching (statistics) , physics , field (mathematics) , mathematics , engineering , computer science , computer security , biometrics , thermodynamics , operating system , mechanical engineering , statistics , pure mathematics
Abstract Dual‐mode circular waveguide filters employ cross‐iris couplings usually designed by small‐aperture approximations. This Letter presents a full‐wave method, which is able to rigorously analyze irises of any shape, thickness, and size, based on a mixed finite‐element method (FEM) and a mode‐matching technique. The accuracy of the method has been tested by comparing measured and computed data.