Accuracy of TLM Solutions of Maxwell's Equations

L. de Menezes and W. J. R. Hoefer

IEEE MTT-S International Microwave Symposium, San Francisco, CA USA, June 16-21 1996, WE3F-53, pp 1019-1022 (Vol. 2).


The physical origin of the coarseness and dispersion errors affecting TLM solutions of Maxwells equations is investigated. The study is performed by solving the difference equations of the method analytically. The results confirm a reduction of the accuracy of the discrete solution near field singularities. This effect is a conse quence of the finite number of spatial modes sup ported by the discretized domain.

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