TY - JOUR
T1 - Design and fabrication of annular arrays for high-frequency ultrasound
AU - Brown, Jeremy A.
AU - Démoré, Christine E. M.
AU - Lockwood, Geoffrey R.
N1 - Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2004/8/1
Y1 - 2004/8/1
N2 - The design, fabrication, and performance of miniature high-frequency annular arrays are described. A 50-MHz, 2-mm-diameter, 7-element, equal-area annular array was fabricated and tested. The array elements were defined using photolithography and the electrical contacts were made using ultrasonic wire bonding. The resulting transducer produced pulses with a -6 dB bandwidth of 52% and an insertion loss of -16 dB. A radiation pattern was collected by scanning the transducer array above the tip of a glass fiber. A -6 dB two-way beam width of 75 microns was found at f/2. The radiation pattern decreased smoothly to less than -60 dB at a distance of 550 microns.
AB - The design, fabrication, and performance of miniature high-frequency annular arrays are described. A 50-MHz, 2-mm-diameter, 7-element, equal-area annular array was fabricated and tested. The array elements were defined using photolithography and the electrical contacts were made using ultrasonic wire bonding. The resulting transducer produced pulses with a -6 dB bandwidth of 52% and an insertion loss of -16 dB. A radiation pattern was collected by scanning the transducer array above the tip of a glass fiber. A -6 dB two-way beam width of 75 microns was found at f/2. The radiation pattern decreased smoothly to less than -60 dB at a distance of 550 microns.
UR - http://www.scopus.com/inward/record.url?scp=4043082664&partnerID=8YFLogxK
U2 - 10.1109/TUFFC.2004.1324405
DO - 10.1109/TUFFC.2004.1324405
M3 - Article
AN - SCOPUS:4043082664
SN - 0885-3010
VL - 51
SP - 1010
EP - 1017
JO - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IS - 8
ER -