Numerical Simulation of Microstrip Circuits Using Unconditional Stable CN-FDTD method Combined with Preconditioned GMRES

摘要：

The increase of the time step size significantly deteriorates the property of the coefficient matrix generated from the Crank-Nicolson finite-difference time-domain (CN-FDTD) method. AsA result,the convergence of classical iterative methods,such as generalized minimal residual method (GMRES) would be substantially slowed down. To addressThis issue,this paper mainly concerns efficient computation of this large sparse linear equations using preconditioned generalized minimal residual (PGMRES) method. Some typical preconditioning techniques,such as the Jacobi preconditioner,the sparse approximate inverse (SAI) preconditioner and the symmetric successive over-relaxation (SSOR) preconditioner,are introduced to accelerate the convergence of the GMRES iterative method. Numerical simulation shows that the SSOR preconditioned GMRES method can reach convergence three times faster than GMRES forThis structure.

作者: Y.Yang R.S.Chen

作者单位: Department of Electronic Engineering Nanjing University of Aeronautics and Astronautics,Nanjing,2100 Department of Communication Engineering Nanjing University of Science and Technology,Nanjing,210094,

会议类型: 国际会议

会议名称: 2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)

会议地点: 南京

会议语种:英文

页码: 956-959

在线出版日期: 2008-04-21（万方平台首次上网日期，不代表论文的发表时间）