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An efficient time-domain simulation method for multirate RF nonlinear circuits
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Orientador(es)
Resumo(s)
This paper describes a new computer-aided design
tool especially conceived for the efficient time-domain simulation
of highly heterogeneous nonlinear wireless communication circuits,
i.e., combining RF and baseband analog circuitry and digital
components.
Using multirate Runge–Kutta algorithms within a multitime
framework, to benefit from the different rates of variation of
slowly varying (latent) and fast-varying (active) currents and voltages
(state variables), we managed to solve the envelope transient
regime of circuits excited by AM and PM RF carriers, in a highly
efficient way. Indeed, with the adoption of convenient sampling
rates for the multiple time representations of the slowly varying
and fast-varying state variables, gains of more than one order of
magnitude in simulation time are reported, even for an illustrative
circuit example of very small size.
Descrição
Palavras-chave
Nonlinear circuits Nonlinear differential equations Simulation
Contexto Educativo
Citação
OLIVEIRA, Jorge Santos Freitas; PEDRO, José Carlos - An efficient time-domain simulation method for multirate RF nonlinear circuits. IEEE Transactions on Microwave Theory and Techniques. Vol. 55,n.º 11 (Nov. 2007), p. 2384-2392.