Numerical integration method in analysis of wire antennas

The numerical evaluation of an integral is a frequently encountered problem in antenna analysis. A special Gauss-Christoffel quadrature formula for nonclassical weight function is constructed for solving the pseudo-singular integration problem arising from the analysis of thin-wire antennas. High integration accuracy is obtained at comparable low computation cost by the quadrature formula constructed. This integration method can be also used in other electromagnetic integral equation problems. Supported by the 863 High Technology Project of China (No. 863-818-01-02) and the National Science Foundation of Hubei Province (No. 97J002) Yang Shaolin: born in 1975, M. S graduate student.