High-performance high-power analog phase shifter

A high average power, high figure of merit, X-band, ferrite loaded waveguide phase shifter has been developed. A zinc-doped magnesium manganese ferrite (4πM
s
=3000 gauss), in combination with a reduced cross-section rectangular waveguide, was used to achieve a figure of merit of 1000 degrees per decibel, which is better than any previously reported mode-free configuration.