The circuit 3 wherein the first bandpass filter further comprises {HEAD ~ an inductor} coupled between {TAIL ~ ground} and the first DC blocking capacitor 
The circuit 3 wherein the first bandpass filter further comprises { HEAD ~ an inductor } coupled between { TAIL ~ ground } and the first DC blocking capacitor
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH