Design of a bandpass differentiator based on network synthesis methods

A bandpass differentiator based on network synthesis methods is designed in this paper. The synthesis methods can implement arbitrary response with frequency. If the transfer function S21 is specified, the stability of the differentiator can be ensured absolutely by chosen the left half-plane roots of F(s). The K/J inverter is designed to implement the coupled circuit. Then, a microwave differentiator is designed and simulated. The simulated results of the differentiator show good agreement with the theoretical analysis.