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Field-singularity correction in 2-D time-domain Haar-wavelet modeling of waveguide components

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2 Author(s)
M. Fujii ; Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada ; W. J. R. Hoefer

A time-domain Haar-wavelet-based modeling technique has been applied to two-dimensional waveguide problems including discontinuities. The field singularity at discontinuities such as edges and corners of conductors is corrected by quasi-static field approximation. Combination of quasi-static correction and wavelet modeling significantly improves the computational efficiency compared to conventional time-domain analysis techniques. The proposed technique was applied to waveguides perturbed by thin and thick irises and also iris-coupled waveguide filters. The computational efficiency of the technique is demonstrated by examining the convergence of the results obtained with different discretizations

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:49 ,  Issue: 4 )