Computation of intermodulation distortion in RF circuits using single-tone moments analysis

Authors:
Dani Tannir;Roni Khazaka
Affiliations:
Department of Electrical and Computer Engineering, McGill University, Montreal, Quebec, Canada;Department of Electrical and Computer Engineering, McGill University, Montreal, Quebec, Canada
Venue:
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Year:
2010

Citing 2
Cited 0

Distortion Analysis of Analog Integrated Circuits

Distortion Analysis of Analog Integrated Circuits
Computation of IP3 using single-tone moments analysis

Proceedings of the Conference on Design, Automation and Test in Europe

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Abstract

Obtaining the value of the third order intercept point using traditional simulation techniques typically requires a nonlinear steady state analysis with multi tone inputs, which is very computationally expensive. In this paper, a new method is presented for the computation of the third order intercept point. Using the proposed approach, the necessary Volterra kernels are computed directly from the harmonic balance equations. The only computation cost is that of solving a set of sparse linear equations. Furthermore, only one input tone is required in this case, which greatly reduces the size of the equations and thus the computation cost.