Temperature stabilization of spin-wave ferrite devices

A method for the self-compensation of the temperature drift of frequency in spin-wave ferrite devices using reversible thermal demagnetization of permanent magnets is proposed. The efficiency of the method is demonstrated for the normal magnetization of the yttrium-iron garnet (YIG) film. A configuration of the magnetic system with the built-in system for the thermal stabilization and electric frequency tuning is presented. The advantages of the system are demonstrated for the frequency stabilization of a YIG film cavity.