Summary
International Symposium on Nonlinear Theory and its Applications
2010
Session Number:B2L-E
Session:
Number:B2L-E4
Single-Tone Moments Based Adjoint Sensitivity Analysis of Nonlinear Intermodulation Distortion in RF Circuits
Dani Tannir, Roni Khazaka,
pp.370-373
Publication Date:2010/9/5
Online ISSN:2188-5079
Summary:
Intermodulation distortion analysis is one of the main computational bottlenecks in the simulation of Radio Frequency circuits. Recently, an effcient moments based approach for computing the third order intercept point (IP3) using moments analysis with only singletone inputs was presented. This approach did not, however, provide any sensitivity information which is critical for design centering, optimization and yield analysis applications among others. In this paper, we propose an efficient method for computing the sensitivity of IP3 using single-tone adjoint moments analysis. The adjoint method finds the sensitivity of one output with respect to all variables with only minimal additional computation cost to the original algorithm, thereby making it very effcient.