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Application of two-step preconditioning technique to the Crank-Nicolson Finite-Difference Time-Domain method for analysis of the 3-D planar circuits

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3 Author(s)
Yang, Y. ; Dept. of Electron. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing ; Niu, S. ; Chen, R.S.

In this paper, two-step sparse approximate inverse(SAI)-symmetric successive overrelaxation(SSOR) preconditioned generalised minimal residual (GMRES) algorithms are applied to solve the linear system of equations resulting from the 3-D CN-FDTD method for the simulation of the T junction microstrip circuit. The simulation results demonstrate that the two-step preconditioner can greatly accelerate the convergence of the GMRES iterative method.

Published in:

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Date of Conference:

16-20 Dec. 2008