Genetic algorithms and method of moments (GA/MoM): A novel integration for antenna design

This paper introduces a novel technique for efficiently integrating genetic algorithms with method of moments (GA/MoM) for antenna design and related electromagnetic problems through the application of direct Z-matrix manipulation (DMM). In the DMM approach to GA/MoM a "mother" impedance or Z-matrix is filled only once at the beginning of the optimization process, and then the GA optimizer operates on subsets of the original "mother" Z-matrix to perform the optimization. Application of DMM to the GA/MoM significantly reduces the total optimization time by eliminating multiple Z-matrix fill operations. The DMM also facilitates the use of matrix partitioning and pre-solving to further reduce the optimization time in many practical cases.