Abstract
The differential time-domain Maxwell's equations are cast in a conservative form and then solved using a finite-volume discretization procedure derived from computational fluid dynamics methods applied to linear/nonlinear gasdynamics equations. The formulation accounts for any variations in the material properties (time, space, and frequency dependence) and can handle thin resistive sheets and lossy coatings by positioning them at finite-volume cell boundaries. The time-domain approach handles both continuous-wave (single-frequency) and pulsed (broadband-frequency) incident excitation. Arbitrarily shaped objects are modeled using a body-fitted coordinate transformation. For treatment of complex internal/external structures with many material layers, a multizone framework with ability to handle any type of zonal boundary conditions (perfectly conducting, flux through, zero flux, periodic, nonreflecting outer boundary, resistive card, lossy coatings, etc.) is implemented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Published Version
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