Computation of Electromagnetic Fields in Axisymmetric Rf Structures With Boundary Integral Equations

Abstract

This paper discuss the numerical computation of electromagnetic fields in axisymmetric structures with piecewise constant dielectric medium and variable boundary conditions. It is assumed that the fields are constant with respect to the angular variable. The implementation is based on the boundary integral equation method and a solution is found by the method of moments. In this work special attention has been paid to the accuracy of the ifeld computation near the boundaries. To this end, special integration techniques have been developed. In simple cases where comparisons are possible, the numerical solutions agree very well with the analytical ones.