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Accurate analysis of losses in waveguide structures by compact two-dimensional FDTD method combined with autoregressive signal analysis

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2 Author(s)
Fujii, M. ; Sumitomo Metal Ind. Ltd., Amagasaki, Japan ; Kobayashi, S.

An efficient two-dimensional finite-difference time-domain (2-D FDTD) method combined with an autoregressive (AR) signal analysis has been proposed for analyzing the propagation properties of microwave guiding structures. The method is especially suitable for analyzing lossy transmission lines; and in contrast with previous approaches, it is based on an algorithm of a real domain only. The algorithm is verified by comparing the numerical results with exact solutions for dielectric loaded rectangular waveguides. The conductor losses in a variety of microstrip lines and coplanar waveguides have been accurately estimated by solving the electromagnetic fields in the conductors directly

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:44 ,  Issue: 6 )