An efficient envelope transient simulation of S-Parameters circuits in system simulator

Abstract : We present here a novel approach on behavioral modeling of passive RF blocks from frequency domain samples. This approach combines the vectorfitting (VF) algorithm, which is a powerful iterative method for estimating the poles and residues of a MIMO system, associated with the inverse Laplace transform in order to implement passive RF models in a time domain system simulation environment. For our application, the Scilab/Scicos tool is chosen since it allows the resolution of implicit equations, therefore, the implementation of bilateral behavioral models. The impulse responses Sij(t) are then evaluated form previous poles/residues identification process in order to compute the implicit relationship between I and V at each port of the block. This method has been validated in the case of simple circuit (load) and extended to the case of complex MIMO sub-systems such as a full power combiner of a power amplifier (PA). As a result, the envelope transient (TE) S-parameters evaluation of circuits is possible. Thence, the evaluation of complex PAs is submitted to an actual signal (which often includes linear sub-circuits derived from Momentum simulation).
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https://hal-unilim.archives-ouvertes.fr/hal-00924346
Contributeur : Edouard Ngoya <>
Soumis le : lundi 6 janvier 2014 - 16:32:51
Dernière modification le : jeudi 25 juillet 2019 - 14:28:04

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  • HAL Id : hal-00924346, version 1

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Hassan Mehdi, Abderrezak Bennadji, Sébastien Mons, Edouard Ngoya, Raymond Quéré. An efficient envelope transient simulation of S-Parameters circuits in system simulator. Microwave Conference (EuMC), 2010 European, Sep 2010, Paris, France. pp.1050 - 1053. ⟨hal-00924346⟩

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