Title :
Preconditioned Conjugate Gradient Method for the Analysis of an Electromagnetic Wave Tool
Author :
Chen, Aixin ; Zuo, Huijuan ; Chen, Aihong ; Su, Donglin
Author_Institution :
Beijing Univ. of Aeronaut. & Astronaut., Beijing
Abstract :
In the finite element method (FEM), the matrix equation can be solved either using a direct elimination method or an iterative method. The conjugate gradient (CG) is a common-used iterative method. But there are several limits in its application. In order to overcome the disadvantages, a preconditioned conjugate gradient (PCG) method based on the incomplete Cholesky decomposition is introduced in this paper. And this PCG method is applied to the analysis of an electromagnetic wave tool.
Keywords :
conjugate gradient methods; electromagnetic wave propagation; finite element analysis; Cholesky decomposition; direct elimination method; electromagnetic wave tool; finite element method; iterative method; matrix equation; preconditioned conjugate gradient; Character generation; Convergence; Electromagnetic analysis; Electromagnetic scattering; Equations; Finite element methods; Gradient methods; Iterative methods; Matrix decomposition; Symmetric matrices;
Conference_Titel :
Antennas, Propagation & EM Theory, 2006. ISAPE '06. 7th International Symposium on
Conference_Location :
Guilin
Print_ISBN :
1-4244-0162-3
Electronic_ISBN :
1-4244-0163-1
DOI :
10.1109/ISAPE.2006.353539
