A new mixed time-frequency simulation method for nonlinear heterogeneous multirate RF circuits

This paper describes a new mixed time-frequency method especially conceived for the efficient simulation of nonlinear multirate RF circuits evidencing some heterogeneity. The proposed method splits the circuit into two subsets, and can be seen as a hybrid scheme combining the popular envelope transi...

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Bibliographic Details
Main Authors: Oliveira, Jorge F, Pedro, José C
Format: Conference Proceeding
Language:English
Subjects:
Baseband
Circuit simulation
Circuit testing
Computational modeling
computer-aided analysis
Delay
Engines
nonlinear circuits
Radio frequency
RF signals
Time domain analysis
Time frequency analysis
Online Access:Request full text
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Description
Summary:This paper describes a new mixed time-frequency method especially conceived for the efficient simulation of nonlinear multirate RF circuits evidencing some heterogeneity. The proposed method splits the circuit into two subsets, and can be seen as a hybrid scheme combining the popular envelope transient harmonic balance (ETHB) technique with a purely time-marching engine. With this method, the hardest nonlinearities of the circuit are appropriately computed in a strictly time-domain approach, whereas the more moderate ones are processed in the frequency-domain. Simulation tests are performed with an illustrative circuit example, revealing gains in computation speed of more than one order of magnitude over mature ETHB.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2010.5514739