S – and T– Matrix Formulations for 2–Port Devices

Abstract

We present the S– and T–matrix formulations of device characteristic for a 2–port device. We demonstrate that while the S–matrix formulation is intuitive and corresponds to physical quantities, the T–matrix formulation is better when it comes to handling multiple devices in series. We then compute the translation from S–matrix to T–matrix formulations and vice–versa.