Aspect ratio dependence of electromechanical coupling coefficient k 31 of lateral-excitation piezoelectric vibrator

Jungsoon Kim, Moojoon Kim, Kanglyeol Ha, Wenwo Cao

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Using the theory of coupled vibrations, the lateral-excitation mode is theoretically analyszed. As a result, a formula for the electromechanical coupling coefficient k31 was derived as a function of the aspect ratio between the width and length of a rectangular thin-plate piezoelectric vibrator. This formula can be used in the design for device fabrication using a lateral-excitation-mode piezoelectric vibrator with an arbitrary aspect ratio.

Original languageEnglish (US)
Pages (from-to)4459-4461
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number7 B
StatePublished - Jul 26 2007

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)


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