Sensitivity analysis of X-parameters using the harmonic balance derivative first moment

Abstract

Sensitivity analysis is an important part of the design process and facilitates critical steps such as optimization, design centering and yield analysis. X-parameters are a recently proposed modeling and design tool for RF circuits. In this paper we propose a closed form method for evaluating the sensitivity of X-parameters with respect to linear circuit components. The proposed method is evaluated in comparison to brute force perturbation in terms of accuracy and computational cost.