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Boundary-marching method for discontinuity analysis in waveguides of arbitrary cross section

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2 Author(s)
Foo, S.L. ; Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada ; Silvester, P.P.

A recursive algorithm previously used in diffusion problems of geophysics and in electrostatics is extended to wave phenomena. It is used to construct a matrix representation for an infinitely long waveguide of arbitrary cross-sectional shape. This representation is used in finite-element analysis of waveguide discontinuities. In numerical tests, scattering matrices for the long guides converge to nearly full word-length in six to seven recursion steps, and discontinuity characteristics are within 1-2% of known results where they exist

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:40 ,  Issue: 10 )