Title :
Robust multigrid preconditioner for fast finite element modeling of microwave devices
Author :
Zhu, Yu ; Cangellaris, Andreas C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
A robust preconditioning technique is presented for the fast finite element modeling of microwave devices. The proposed preconditioner is based on a multigrid scheme for the vector-scalar potential finite element formulation of electromagnetic problems. Numerical experiments from the application of the new preconditioner to the finite element analysis of microwave devices are used to demonstrate its superior numerical convergence and efficient memory usage.
Keywords :
convergence of numerical methods; finite element analysis; microwave devices; convergence; electromagnetic wave propagation; finite element model; microwave device; multigrid preconditioner; numerical simulation; vector-scalar potential; Electromagnetic analysis; Electromagnetic scattering; Electromagnetic waveguides; Equations; Finite element methods; Microwave devices; Microwave theory and techniques; Multigrid methods; Robustness; Transmission line matrix methods;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.959314
