Title :
Krylov Model Order Reduction of Finite Element Models of Electromagnetic Structures with Frequency-Dependent Material Properties
Author :
Wu, Hong ; Cangellaris, Andreas
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ. at Urbana-Champaign, Urbana, IL
Abstract :
Krylov subspace-based model order reduction (MOR) of finite element models of electromagnetic structures is not readily applicable when the electromagnetic properties of the materials exhibit arbitrary frequency dependence. This paper presents a methodology for overcoming this hurdle. The proposed Krylov MOR process is demonstrated through its application to the expedient broadband analysis of the impact of skin-effect loss on the transmission properties of a microstrip bandpass filter and the extraction of the propagation characteristics of a microstrip line on a dielectric substrate with frequency-dependent permittivity described by a Debye model
Keywords :
band-pass filters; dielectric materials; electromagnetic wave propagation; electromagnetic wave transmission; finite element analysis; microstrip filters; permittivity; reduced order systems; skin effect; Debye model; Krylov MOR process; Krylov model order reduction; dielectric substrate; electromagnetic structures; finite element models; frequency-dependent material properties; frequency-dependent permittivity; microstrip bandpass filter; microstrip line; propagation characteristics; skin-effect loss; transmission properties; Band pass filters; Dielectric losses; Dielectric substrates; Electromagnetic modeling; Finite element methods; Frequency dependence; Material properties; Microstrip filters; Permittivity; Propagation losses; Model order reduction; dispersive media; finite element method; frequency dependent rational function;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249925
