An integral-equation technique for solving thick irises in rectangular waveguides

This paper presents an efficient integral-equation (IE) technique for analysis of thick irises inside multilayered rectangular waveguides. The IEs remain the same as in the case of zero-thickness iris and the thickness is accounted for only as a correction term in the IE kernel. This technique halves the number of unknowns on the iris, thus leading to computational effort and simulation times comparable to the zero-thickness case. In this paper, two efficient ways for computing the correction term are introduced and the accuracy of the approach is discussed on several waveguide structures and filters


Published in:
IEEE Transactions on Microwave Theory and Techniques, 54, 189-197
Year:
2006
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 Record created 2006-11-30, last modified 2018-12-03

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