"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 5, 2018

contents of issue      DOI  10.30898/1684-1719.2018.5.3       full text in Russian (pdf)  

Numerical Technique for Distortion Analysis of RF Circuits in Periodical Mode with Multitone Excitations


M. M. Gourary, S. G. Rusakov, S. L. Ulyanov, M. M. Zharov

Institute for Design Problems in Microelectronics of Russian Academy of Sciences, Sovetskaya Street 3, Moscow 124365, Russia


 The paper is received on April 30, 2018


Abstract. The formalized approach for periodic distortion analysis is presented. The problem of distortion of periodic time-varying circuits is an important practical task in development of RF CAD. Distortion analysis of communication circuits often requires determining the distortion about a periodically time-varying operating point. In this case the distortion characteristics can be obtained from the simulation of weakly nonlinear behavior with respect to the input signal. The computational method is based on exploitation of the properties of the simplified Newton iterative process to solve nonlinear problems in functional space. The numerical scheme of periodic distortion analysis is described. Unlike Volterra series this technique doesn’t require computation of the second and third derivatives of device models. Three steps of the algorithm provide the same order of accuracy that three steps of the distortion procedure based on Volterra series methods. The special-purpose mode for the periodic distortion analysis of RF circuits is based on the simulation in the frequency domain in the framework of the harmonic balance method. In comparison with solving the complete multitone steady-state problem for the periodic distortion analysis the new approach provides the significant computational efficiency due to the simplification of the algorithms.

Key words: circuit simulation, nonlinear circuits, steady-state periodic mode, periodic distortion.


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For citation:
M. M. Gourary, S. G. Rusakov, S. L. Ulyanov, M. M. Zharov. Numerical technique for distortion analysis of RF circuits in periodical mode with multitone excitations. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2018. No. 5. Available at http://jre.cplire.ru/jre/may18/3/text.pdf

DOI  10.30898/1684-1719.2018.5.3