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