Multiple matching scheme for broadband 0.72Pb (Mg1/3 Nb2/3) O3-0.28 PbTiO3single crystal phased-array transducer

S. T. Lau; H. Li; K. S. Wong; Q. F. Zhou; D. Zhou; Y. C. Li; H. S. Luo; K. K. Shung; Jiyan Dai

doi:10.1063/1.3065476

Multiple matching scheme for broadband 0.72Pb (Mg1/3 Nb2/3) O₃-0.28 PbTiO₃single crystal phased-array transducer

S. T. Lau, H. Li, K. S. Wong, Q. F. Zhou, D. Zhou, Y. C. Li, H. S. Luo, K. K. Shung, Jiyan Dai

Research output: Journal article publication › Journal article › Academic research › peer-review

51 Citations (Scopus)

Abstract

Lead magnesium niobate-lead titanate single crystal 0.72Pb (Mg1/3 Nb2/3) O3-0.28 PbTiO3(abbreviated as PMN-PT) was used to fabricate high performance ultrasonic phased-array transducer as it exhibited excellent piezoelectric properties. In this paper, we focus on the design and fabrication of a low-loss and wide-band transducer for medical imaging applications. A KLM model based simulation software PiezoCAD was used for acoustic design of the transducer including the front-face matching and backing. The calculated results show that the -6 dB transducer bandwidth can be improved significantly by using double λ/8 matching layers and hard backing. A 4.0 MHz PMN-PT transducer array (with 16 elements) was fabricated and tested in a pulse-echo arrangement. A -6 dB bandwidth of 110% and two-way insertion loss of -46.5 dB were achieved.

Original language	English
Article number	094908
Journal	Journal of Applied Physics
Volume	105
Issue number	9
DOIs	https://doi.org/10.1063/1.3065476
Publication status	Published - 22 Jun 2009

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.3065476

http://hdl.handle.net/10397/3272

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title = "Multiple matching scheme for broadband 0.72Pb (Mg1/3 Nb2/3) O3-0.28 PbTiO3single crystal phased-array transducer",

abstract = "Lead magnesium niobate-lead titanate single crystal 0.72Pb (Mg1/3 Nb2/3) O3-0.28 PbTiO3(abbreviated as PMN-PT) was used to fabricate high performance ultrasonic phased-array transducer as it exhibited excellent piezoelectric properties. In this paper, we focus on the design and fabrication of a low-loss and wide-band transducer for medical imaging applications. A KLM model based simulation software PiezoCAD was used for acoustic design of the transducer including the front-face matching and backing. The calculated results show that the -6 dB transducer bandwidth can be improved significantly by using double λ/8 matching layers and hard backing. A 4.0 MHz PMN-PT transducer array (with 16 elements) was fabricated and tested in a pulse-echo arrangement. A -6 dB bandwidth of 110% and two-way insertion loss of -46.5 dB were achieved.",

author = "Lau, {S. T.} and H. Li and Wong, {K. S.} and Zhou, {Q. F.} and D. Zhou and Li, {Y. C.} and Luo, {H. S.} and Shung, {K. K.} and Jiyan Dai",

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AU - Lau, S. T.

AU - Li, H.

AU - Wong, K. S.

AU - Zhou, Q. F.

AU - Zhou, D.

AU - Li, Y. C.

AU - Luo, H. S.

AU - Shung, K. K.

AU - Dai, Jiyan

PY - 2009/6/22

Y1 - 2009/6/22

N2 - Lead magnesium niobate-lead titanate single crystal 0.72Pb (Mg1/3 Nb2/3) O3-0.28 PbTiO3(abbreviated as PMN-PT) was used to fabricate high performance ultrasonic phased-array transducer as it exhibited excellent piezoelectric properties. In this paper, we focus on the design and fabrication of a low-loss and wide-band transducer for medical imaging applications. A KLM model based simulation software PiezoCAD was used for acoustic design of the transducer including the front-face matching and backing. The calculated results show that the -6 dB transducer bandwidth can be improved significantly by using double λ/8 matching layers and hard backing. A 4.0 MHz PMN-PT transducer array (with 16 elements) was fabricated and tested in a pulse-echo arrangement. A -6 dB bandwidth of 110% and two-way insertion loss of -46.5 dB were achieved.

AB - Lead magnesium niobate-lead titanate single crystal 0.72Pb (Mg1/3 Nb2/3) O3-0.28 PbTiO3(abbreviated as PMN-PT) was used to fabricate high performance ultrasonic phased-array transducer as it exhibited excellent piezoelectric properties. In this paper, we focus on the design and fabrication of a low-loss and wide-band transducer for medical imaging applications. A KLM model based simulation software PiezoCAD was used for acoustic design of the transducer including the front-face matching and backing. The calculated results show that the -6 dB transducer bandwidth can be improved significantly by using double λ/8 matching layers and hard backing. A 4.0 MHz PMN-PT transducer array (with 16 elements) was fabricated and tested in a pulse-echo arrangement. A -6 dB bandwidth of 110% and two-way insertion loss of -46.5 dB were achieved.

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Multiple matching scheme for broadband 0.72Pb (Mg1/3 Nb2/3) O₃-0.28 PbTiO₃single crystal phased-array transducer

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