An improved extended FDTD formulation for active microwave circuits

Author

Reddy, V.S. ; Garg, Ramesh

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India

Volume

47

Issue

9

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

1603

Lastpage

1608

Abstract

An improved extended finite-difference time-domain formulation for the analysis of active linear and nonlinear microwave circuits is presented in this paper. Here, we have selected the current source approach and have tried to update all the electric-field components on the active sheet. Central-difference approximation has been used for the discretization of the resultant set of state equations. The equivalent circuit of the device has been treated as a zero-dimensional circuit with respect to the wave propagation. The results based on this formulation show good agreement with analytically obtained data for circuits like amplifiers and oscillators

Keywords

active networks; equivalent circuits; finite difference time-domain analysis; microwave circuits; FDTD analysis; active microwave circuit; amplifier; central difference approximation; current source method; discretization; electric field; equivalent circuit; linear circuit; nonlinear circuit; oscillator; state equations; wave propagation; zero-dimensional circuit; Equations; Equivalent circuits; Finite difference methods; Microstrip; Microwave amplifiers; Microwave circuits; Microwave devices; Microwave oscillators; Microwave propagation; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.788599

Filename

788599