Patent ID: 8779873

Claim:
A ferrite phase shifter comprising: a rectangular waveguide; substantially sheet-like ferrites disposed to face each other with respective mounting surfaces thereof kept in tight contact with inner walls of wide surfaces of the rectangular waveguide facing each other; and a coil which is wound around the periphery of the rectangular wave guide in a position substantially corresponding to the position of the substantially sheet-like ferrite and through which a current is passed; dielectric layers provided on surfaces of the substantially sheet-like ferrites facing each other; yokes provided in positions substantially corresponding to the positions of the substantially sheet-like ferrites on outer walls of the wide surfaces of the rectangular waveguide; and at least one elongate square cylindrical section provided on each of the wide surfaces of the rectangular waveguide so as to protrude outwardly, each of the at least one elongate cylindrical sections having a slit whose longitudinal direction agrees with the longitudinal direction of the rectangular waveguide.