Title :
Efficient modeling of microwave integrated-circuit geometries via a dynamically adaptive mesh Refinement-FDTD technique
Author :
Liu, Yaxun ; Sarris, Costas D.
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Ont., Canada
Abstract :
The finite-difference time-domain (FDTD) method is combined with an adaptive mesh refinement (AMR) technique, to achieve a fast, time-domain solver for Maxwell´s equations (AMR-FDTD), based on a three-dimensional moving/rotating Cartesian mesh. This combination allows the proposed solver to adapt to the problem at hand, optimally distributing computational resources in a given domain as needed, by recursively refining a coarse grid in regions of large over time gradient of electromagnetic field energy. Several applications of the method to the analysis of microwave circuit geometries demonstrate its salient features and its outstanding efficiency as a microwave computer-aided design tool.
Keywords :
Maxwell equations; circuit CAD; finite difference time-domain analysis; gradient methods; integrated circuit design; integrated circuit modelling; mesh generation; microwave integrated circuits; 3D Cartesian mesh; Maxwell equations; adaptive mesh refinement; coarse grid definition; electromagnetic field energy gradient; finite-difference time-domain method; microwave circuit geometries; microwave computer-aided design tool; microwave integrated circuit modeling; time-domain solver; Adaptive mesh refinement; Distributed computing; Electromagnetic fields; Finite difference methods; Geometry; Grid computing; Maxwell equations; Microwave theory and techniques; Solid modeling; Time domain analysis; Adaptive mesh refinement (AMR); finite difference time domain (FDTD); microwave integrated circuits;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2005.862660
