Monte Carlo-based harmonic-balance technique for the simulation of high-frequency TED oscillators

Author

Kamoua, Ridha

Author_Institution

Dept. of Electr. Eng., State Univ. of New York, Stony Brook, NY, USA

Volume

46

Issue

10

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

1376

Lastpage

1381

Abstract

A harmonic-balance technique for the analysis of high-frequency transferred electron device (TED) oscillators is developed. The behavior of the nonlinear TED is not obtained from a quasi-static equivalent circuit; rather, a physical transport model is used to determine its response in the time domain. This model is based on the ensemble Monte Carlo technique coupled to a heat-flow equation, which accounts for thermal effects on the device operation. It is found that the standard splitting method for updating the unknown voltage across the diode fails to converge to a steady-state solution at the fundamental frequency. A modified version is proposed, which updates the voltage at the fundamental and higher harmonics differently. This method exhibits much better convergence behavior. Simulation results obtained with the complete model are in very good agreement with experimental data from InP TED oscillators operating at 131.7 and 151 GHz in the fundamental mode and at 188 GHz in the second-harmonic mode

Keywords

Gunn oscillators; III-V semiconductors; Monte Carlo methods; circuit analysis computing; convergence; harmonics; indium compounds; millimetre wave oscillators; nonlinear network analysis; semiconductor device models; time-domain analysis; 131.7 to 188 GHz; EHF; InP; MM-wave TED oscillators; Monte Carlo-based harmonic-balance technique; convergence behavior; ensemble Monte Carlo technique; fundamental mode; heat-flow equation; physical transport model; second-harmonic mode; simulation; splitting method; thermal effects; transferred electron device oscillators; Circuit simulation; Coupling circuits; Diodes; Equivalent circuits; Gunn devices; Harmonic analysis; Monte Carlo methods; Nonlinear equations; Oscillators; Voltage;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.721138

Filename

721138