Hybrid FDTD large-signal modeling of three-terminal active devices

Author

Chen, Qiang ; Fusco, V.F.

Author_Institution

Dept. of Electr. & Electron. Eng., The Queens Univ. of Belfast, Ireland

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1267

Lastpage

1270

Abstract

A general algorithm for including large-signal active three-terminal models into the finite-difference time-domain (FDTD) method is presented. A dynamic interface between the active device and the FDTD lattice is used to simulate the prominent nonlinear time-dependant behavior of the three-terminal active device, which is connected across multiple FDTD cells. A technique for introducing an internal electromagnetic (EM) field absorber into the FDTD three-terminal active device model in order to eliminate undesired current coupling is discussed. Numerical comparison shows this method is accurate and expected to have general utility for other complicated hybrid lumped-circuit FDTD modeling situations

Keywords

equivalent circuits; finite difference time-domain analysis; semiconductor device models; EM field absorber; current coupling elimination; dynamic interface; finite-difference time-domain method; hybrid FDTD large-signal modeling; internal electromagnetic field absorber; nonlinear time-dependant behavior; three-terminal active devices; Circuit simulation; Electromagnetic coupling; Electromagnetic fields; Electromagnetic modeling; FETs; Finite difference methods; Lattices; Slotline; Time domain analysis; Voltage;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.618419

Filename

618419