Steering of Limited diffraction beams with a two-dimensional array transducer

Jian Yu Lu, James F. Greenleaf

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations


Limited diffraction beams such as Bessel beams and X waves have large depth of field and could have applications in medical ultrasound and other wave related areas. However, they are usually produced by annular arrays which have to be scanned mechanically. In this paper, the production and steering of the limited diffraction beams with a two-dimensional array are studied. Results show that good limited diffraction beams can be produced if the size of the array elements is small and the array aperture is compensated so that the projection of the aperture on a plane perpendicular to the beam axis is a constant annular ring pattern. The electronic system for controlling the two-dimensional array is described and methods to simplify it are proposed.

Original languageEnglish (US)
Title of host publication1992 Ultrasonics Symposium Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)0780305620
StatePublished - 1992
Event1992 Ultrasonics Symposium - Tucson, United States
Duration: Oct 20 1992Oct 23 1992

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117


Conference1992 Ultrasonics Symposium
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Acoustics and Ultrasonics


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