Sensitivity analysis of S-parameters Including port variations using the Transfinite Element Method

Abstract

Sensitivity analysis of microwave devices with respect to design parameters is presented. Ports are included in the computational domain via the Transfinite Element Method. The derivative of the system matrix is computed analytically. In particular, derivatives of the system matrix entries that depend on ports are obtained by analytical differentiation of the port eigenvalue problem. Numerical examples confirm the effectiveness of the proposed approach.