Title :
Enhanced PML-like ABCs for layered media transmission line termination
Author :
Lauer, A. ; Wien, A. ; Waldow, P. ; Wolff, I.
Author_Institution :
Inst. of Mobile & Satellite Commun. Techniques, Kamp-Lintfort, Germany
Abstract :
An equivalent circuit (EC) based analytical way is shown to optimize the discrete conductivity profile of PML-like Absorbing Boundary Conditions for layered media transmission line termination. for validation, a two cell microstrip transmission line (Substrate /spl epsiv//sub r/+12.9) absorber is presented with S/sub 11/<-60 dB in a 3D FDTD simulation, which is in excellent agreement with the Equivalent Circuit model´s prediction. Therefore a significant reduction of the ABC computation time can be achieved.
Keywords :
equivalent circuits; finite difference time-domain analysis; inhomogeneous media; microstrip lines; waveguide theory; 3D FDTD simulation; PML-like ABCs; absorbing boundary conditions; computation time; discrete conductivity profile; equivalent circuit; layered media transmission line termination; two cell microstrip transmission line; Boundary conditions; Circuit analysis; Conductivity; Distributed parameter circuits; Equivalent circuits; Finite difference methods; Microstrip; Nonhomogeneous media; Predictive models; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011734
