Efficient Harmonic Balance Analysis of Waveguide Devices With Nonlinear Dielectrics

Author

Ntibarikure, Laurent ; Pelosi, Giuseppe ; Selleri, Stefano

Author_Institution

Dept. of Electron. & Telecommun., Univ. of Florence, Florence, Italy

Volume

22

Issue

5

fYear

2012

fDate

5/1/2012 12:00:00 AM

Firstpage

221

Lastpage

223

Abstract

The computation of high order harmonic components of the time-harmonic field originated in waveguide structures containing nonlinear dielectrics is addressed exploiting harmonic balance and finite element methods. The solution of the nonlinear system is handled either via Picard or relaxed iterations. Being the nonlinear loop particularly time demanding, a domain decomposition method is proposed to speed-up the system solution by restricting the iteration to a small subdomain. A numerical example over a 2-D H-plane device is presented.

Keywords

dielectric materials; finite element analysis; harmonics; waveguides; 2D H-plane device; domain decomposition method; finite element method; harmonic balance analysis; high order harmonic component; nonlinear dielectrics; nonlinear loop; nonlinear system; speed-up the system solution; time-harmonic field; waveguide devices; waveguide structures; Approximation methods; Dielectrics; Finite element methods; Harmonic analysis; Iron; Radio frequency; Vectors; Domain decomposition method; finite element methods; harmonic analysis; nonlinear media; waveguide filters;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2012.2192420

Filename

6185700