Array Configuration to Eliminate Grating Lobes

  • Shin-ichiro Umemura
  • Kageyoshi Katakura
Part of the Acoustical Imaging book series (ACIM, volume 17)


A new configuration of ultrasound array transducers is proposed whose element boundaries interlock in a fine pattern to eliminate grating lobes from the acoustic field without using a very large number of array elements. Two dimensional acoustic fields produced by interlocking element 3.5 MHz array transducers are computer-simulated. These acoustic fields are compared with those from the corresponding conventional array transducer with straight-line element boundaries. The new configuration reduces grating lobe intensity by 20 dB in a round trip acoustic field and virtually eliminates grating lobes.


Piezoelectric Material Acoustic Field Element Array Main Lobe Array Transducer 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Shin-ichiro Umemura
    • 1
  • Kageyoshi Katakura
    • 1
  1. 1.Central Research LaboratoryHitachi Ltd.Kokubunji, TokyoJapan

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