Numerical Analysis of 3mm Ferrite Dielectric Waveguide Through Galerkin’s Method

摘要

With the development of long range missile early warning radar,MMW phased array antenna is strongly needed. The phase shifter (PS) with high power capability and low insertion loss is a key technology in this kind of radar. Ferrite dielectric waveguide is introduced in this paper to manufacture PS,the cross section can be enlarged to 4 times of that of the conventional PS,which facilitates the engineering realization with reduced insertion loss. A novel vector base function of Galerkin method is proposed in calculating the eigenvalue of ferrite dielectric waveguide. The field distribution of main mode,power density and efficiency of 94 GHz difference phase shifter are also given.