Changing the magnetization of the magnetic member 3 for {TAIL ~ frequency regulation} can reversibly perform a regulation of the frequency characteristics of {HEAD ~ the nonreciprocal circuit} 
Changing the magnetization of the magnetic member 3 for { TAIL ~ frequency regulation } can reversibly perform a regulation of the frequency characteristics of { HEAD ~ the nonreciprocal circuit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD