Boundary Conditions and Layer technique for the Simulation of Electromagnetic Waves above a Lossy Medium

Francis Collino 1
Abstract : Two inovative techniques for the simulation of the effect of a lossy dielectric half-space are derived and analysed. The first is an adapted impedance surface condition imposed at the interface to replace the dielectric medium. This condition, when coupled with Maxwell's equations yields a stable system which can be written in a variational form. It allows us to take into acccount both the polarization and the angle of incidence of the out-going waves. The second technique is a generalization of the Bérenger perfectly matched layers: the dielectric is now replaced by a short length layer in which the waves are governed by a modification of Maxwell's equations. For this model, the two reflection coefficients are the same as for the true dielectric while the damping inside the layer is enforced.
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[Research Report] RR-2698, INRIA. 1995
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Francis Collino. Boundary Conditions and Layer technique for the Simulation of Electromagnetic Waves above a Lossy Medium. [Research Report] RR-2698, INRIA. 1995. 〈inria-00073992〉

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