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