Improved Fully Canonical Phase Equalized W-Band Waveguide Filter with Dispersive Coupling Inverter

摘要

This paper presents an improved fully canonical phase equalized waveguide filter whose number of transmission zeros exceeds the number of cavity resonators in the filter. Two more transmission zeros than usual can be assigned by using a dispersive source to load coupling inverter. Measurement results as well as a discrete equivalent circuit for the improved dispersive inverter are provided. General equations for determination of component values are derived and a comparison between different inverters is given.