The Analysis of a Microwave Amplifier by Extended FDTD Algorithm

Heejin KANG
Jaehoon CHOI

IEICE TRANSACTIONS on Communications   Vol.E85-B    No.6    pp.1198-1201
Publication Date: 2002/06/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Communication Devices/Circuits
amplifier,  nonlinear circuit,  FDTD method,  integrated circuit,  

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This paper presents the full wave analysis of a microwave amplifier by the extended finite difference time domain method. The device-wave interaction is characterized and incorporated into the FDTD time-marching scheme. The equivalent current source is used to model the amplifier and all the electric field components at the active sheet are updated by FDTD. Central-difference approximation is used to discretize a set of state equations. The results obtained by the present method show good agreement with those of the frequency domain circuit analysis and serenade v8.5.