Аннотация
In the paper, some models are analyzed which allow solving rather complex 2D problems of the electromagnetic wave radiation and propagation with a required accuracy using ordinary personal computers. The problems are of great importance for the theory and practical applications. The basis for constructing models of the kind are the exact absorbing conditions which use makes it possible to reduce the original open initial boundary-value problems to equivalent closed problems, i.e., to such problems which can be solved numerically using the standard net methods.