at least one peaking amplifier arranged in {HEAD ~ parallel} with {TAIL ~ the carrier amplifier} in such a manner that the carrier amplifier and the peaking amplifier collectively operate as a Doherty amplifier 
with
at least one peaking amplifier arranged in { HEAD ~ parallel } with { TAIL ~ the carrier amplifier } in such a manner that the carrier amplifier and the peaking amplifier collectively operate as a Doherty amplifier
OTH OTH OTH OTH OTH OTH OTH 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 OTH