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Calculations of the dispersive characteristics of microstrips by the time-domain finite difference method

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4 Author(s)
Zhang, X. ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA ; Jiayuan Fang ; Mei, K.K. ; Liu, Y.

A direct time-domain finite-difference method is used to recharacterize the microstrip. Maxwell's equations are discretized both in time and space and a Gaussian pulse is used to excite the microstrip. The frequency-domain data are obtained from the Fourier transform of the calculated time-domain field values. Since this method is completely independent of all the above-mentioned investigations, the results can be considered as an impartial verification of the published results. The comparison of the time-domain results and those from the frequency-domain methods has shown the integrity of the time-domain computations. This method is very general and can be applied to model many other microwave components

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:36 ,  Issue: 2 )