A lumped, large-signal dynamic model of the mosfet for RF circuit simulation

Chen Zaiman1, Lai Jinmei1, Omar Wing1, Ren Junyan1
1ASIC and Systems State Key Laboratory, Fudan University, Shanghai, China

Tóm tắt

We present a lumped, large-signal dynamic model of the MOS transistor that is derived from a partial differential equation model of the transistor. The new model is a ladder network in which each series arm is a nonlinear conductance and each shunt arm a nonlinear charge "store." The network variables are localized surface potentials, surface charge densities, and currents. We test the model against the PDE model in RF circuit simulation and the two sets of results agree well even for a small number of sections (4) of the ladder.

Từ khóa

#MOSFET circuits #Radio frequency #Circuit simulation #Partial differential equations #Circuit testing #Differential equations #Computational modeling #Application specific integrated circuits

Tài liệu tham khảo

xin-yu, 0, Periodic steady state solution of PDE-ODE system for RF circuit simulation 10.1109/ISCAS.2002.1010454 lee, 1998, The Design of CMOS Radio-Frequency Integrated Circuits 10.1016/0038-1101(78)90264-2 10.1109/ICASIC.2001.982650 tsividis, 1999, Operation and Modeling of the MOSFET