an array of transducer elements arranged in rows and columns along {HEAD ~ a first plane} for transmitting {TAIL ~ first signals} and receiving reflected signals for image processing; and a plurality of circuit structures each having 
for transmitting
an array of transducer elements arranged in rows and columns along { HEAD ~ a first plane } for transmitting { TAIL ~ first signals } and receiving reflected signals for image processing ; and a plurality of circuit structures each having
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH