Time domain analysis of transmission line based on WLP-FDTD

In this paper, a novel solution based on weighted Laguerre polynomials finite-difference time-domain (WLP-FDTD) method is proposed for time domain analysis of interconnect modeled as a transmission line. Compared with finite-difference time-domain (FDTD) method, which is an explicit scheme and limited by Courant condition, the WLP-FDTD method is unconditionally stable since the solution is implicit. Numerical results show that the proposed WLP-FDTD solution is as accurate as but much faster than conventional FDTD-based solutions.