When using the moment method to solve three-dimensional electromagnetic problems with subsectional sinusoid expansion functions and Galerkin's method, an integral in the form of a sinusoid and exponential is often encountered. Since this integral is typically evaluated many times in the course of solving a problem, efficient numerical evaluation of the core integral could lead to a significant reduction of computation time. A new computing algorithm based upon series representation of the integrand is presented which can quickly evaluate this expression. Typical execution time comparisons on several computers are given.
ASJC Scopus subject areas
- Electrical and Electronic Engineering