In {HEAD ~ the method}, the detector detects an output signal of {TAIL ~ the supply modulator} 
In { HEAD ~ the method } , the detector detects an output signal of { TAIL ~ the supply modulator }
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL