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An electromagnetic solver for printed-circuit analysis is presented. The electromagnetic simulator is based on the finite-difference time-domain method with first-order Mur's absorbing boundary conditions. The solver environment comprises a layout graphic editor for circuit topology preparation and a data postprocessor for presenting the calculation results. The solver has been applied to the analysis of printed-circuit components such as printed antenna, microstrip discontinuities, etc.

finite-difference time-domain method; FDTD; Maxwell's equations; absorbing boundary conditions; microstrip discontinuity; printed antenna