Simulation of Thin Layers in the Method of Moments

Abstract

The method of moments has proved to be a powerful tool for the numerical computation of electrodynamic phenomena in technically interesting structures. In practice often thin penetrable material layers can be found, for instance radoms, plastic casings, vaporized metal coats etc., which have influence on the radiation coupling. In general it is not important to know the field distribution inside a layer. In this paper it is shown how to consider a geometrically thin layer with defined material constants ε, μ, σ in the method of moments without additional modelling expenditure. The efficiency of the procedure is demonstrated by means of some examples, amoung them a hollow sphere which can be treated analytically too.