Design and fabrication of annular arrays for high-frequency ultrasound

Jeremy A. Brown; Christine E.M. Démoré; Geoffrey R. Lockwood

doi:10.1109/TUFFC.2004.1324405

Design and fabrication of annular arrays for high-frequency ultrasound

Jeremy A. Brown, Christine E.M. Démoré, Geoffrey R. Lockwood

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

84 Citas (Scopus)

Resumen

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.

Idioma original	English
Páginas (desde-hasta)	1010-1017
Número de páginas	8
Publicación	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volumen	51
N.º	8
DOI	https://doi.org/10.1109/TUFFC.2004.1324405
Estado	Published - ago. 2004
Publicado de forma externa	Sí

ASJC Scopus Subject Areas

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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abstract = "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.",

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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.

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Design and fabrication of annular arrays for high-frequency ultrasound

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