The cavity resonator within {HEAD ~ the block} is configured in {TAIL ~ a tightly folded zig zag configuration} 
The cavity resonator within { HEAD ~ the block } is configured in { TAIL ~ a tightly folded zig zag configuration }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL