Temperature stability of quality factor of junction circulators

An aspect of the design of any circulator is the temperature stability of its gyromagnetic resonator. The possibility of stabilising such devices by optimising the ratio between the direct magnetic field and the magnetisation has been previously proposed. The paper aims to verify this condition by examining that of the quality factor of one C-band waveguide circulator using a CVG resonator. It indicates that the rule introduced in connection with the intersection of the magnetisation curves at different temperatures against the direct magnetic is equally applicable to this situation