Improvement of characteristics of leaky surface acoustic wave on LiTaO 3

Tetsuya Kimura, Michio Kadota, Yasuyuki Ida

研究成果: Article査読

抄録

Leaky surface acoustic wave (LSAW) devices on Al-electrode/36-48° YX-LiTaO3 substrates have seen wide use as filters and duplexers in cell phones because they possess a suitable electromechanical coupling factor and reflection coefficient, and a good Q factor for cell phones. In this paper, a new LSAW structure consisting of upper Al electrodes stacked on lower grooved Cu electrodes in LiTaO3 is proposed and compared with Al electrodes (0.1 λ)/42° YX-LiTaO3, which have been considered the best structure. We have been able to improve the characteristics of the LSAW.

本文言語English
ページ(範囲)25-31
ページ数7
ジャーナルElectronics and Communications in Japan
96
2
DOI
出版ステータスPublished - 2013 2 1

ASJC Scopus subject areas

  • Signal Processing
  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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