Open AccessEfficient boundary integral‐resonant mode expansion method implementation for full‐wave analysis of passive devices based on circular waveguides with arbitrary perturbations
Author(s) -
Carceller Carlos,
Cogollos Santiago,
Soto Pablo,
Gil Jordi,
Boria Vicente E.,
Vicente Carlos,
Gimeno Benito
Publication year - 2013
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2012.0603
Subject(s) - boundary (topology) , waveguide , boundary value problem , mode (computer interface) , representation (politics) , mathematical analysis , physics , mathematics , topology (electrical circuits) , optics , computer science , operating system , combinatorics , politics , law , political science
In this study, the efficient full‐wave analysis of passive devices composed of circular and arbitrarily‐shaped waveguides is considered. For this purpose, the well‐known boundary integral‐resonant mode expansion (BI–RME) method has been properly extended. Circular waveguides are used for resonant mode expansion, whereas the arbitrary contour is defined by any combination of straight, circular and elliptical segments, thus allowing the exact representation of the most widely used geometries. The proposed algorithm extends previous implementations of the BI–RME method based on circular waveguides by considering circular and elliptical arcs for defining arbitrary geometries. Similarly, it allows the efficient analysis of passive devices based on circular waveguides with arbitrary perturbations, thus providing more accurate results with less computational efforts than a rectangular waveguide‐based BI–RME approach. The extended method has been successfully tested with several practical application examples, having compared its performance with the BI–RME method based on rectangular waveguides.