T-Topology Coupler-Based Bandpass Negative Group Delay Active Circuit Design and Test

This article develops a design method for the bandpass negative group delay active microwave circuits. The theoretical calculations, simulation results, and measurements on a tested prototype show excellent consistency. —Haralampos Stratigopoulos, Sorbonne Université, CNRS, LIP6

Design, Simulation, and Experimental Validations of the NGD T-Topology

This section introduces the S-matrix modeling of the passive T-topology. The BP NGD analysis is performed in function of the circuit parameters.