Author(s)

Shan Zhao, Naiqian Zhang, Dong Li, Jianxun Su

Department of Microwave Technology East China Research Institute of Electronic Engineering Hefei, China.
Information Engineering College Communication University of China Beijing, China.

In this paper, a hybrid method (hybrid PMM-MoM method) is presented for the effective and accurate analysis of finite periodic structures. This method divides a finite periodic structure into two parts. The inner part of an approximate infinite periodic structure is analyzed by periodic method of moment (PMM); the outer part is then analyzed by method of moments (MoM). For the finite periodic structures, the accuracy of the new method is much better than that of the pure PMM, and is almost the same as that of pure MoM. Because pure PMM uses the periodic boundary conditions, it takes much less memory resources and computation time. For hybrid PMM-MoM method, because the inner part is calculated by PMM, the calculation work concentrates on the outer part. Consequently, compared with the exact MoM, the new method saves much more memory resources and computation time, which provides a drastic reduction of unknowns.

hybrid method; PMM-MoM; infinite Periodic Structures; RCS

Zhao, S. , Zhang, N. , Li, D. and Su, J. (2012) Hybrid PMM-MoM Method for the Analysis of Finite Periodic Structures. Open Journal of Applied Sciences, 2, 175-178. doi: 10.4236/ojapps.2012.24B040.