Abstract
A Leaky surface acoustic wave (LSAW) on Al-electrodes/36-48°YX- LiTaO3 substrates have widely used as filters and duplexers in cell phones because of having a suitable electro-mechanical coupling factor, reflection coefficient and good Q-factor for cell phones. In this paper, a new LSAW structure consisted of upper Al-electrodes stacked on lower grooved Cu-electrodes in the LiTaO3 is proposed and compared with Al-electrodes (0.1)/42°YX-LiTaO3 which has been considered the best structure ever. As the result, authors have been able to improve characteristics of the LSAW.
Original language | English |
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Pages (from-to) | 1115-1119 |
Number of pages | 5 |
Journal | IEEJ Transactions on Electronics, Information and Systems |
Volume | 131 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2011 |
Externally published | Yes |
Keywords
- Grooved electrodes
- Leaky surface acoustic wave
- Resonator
ASJC Scopus subject areas
- Electrical and Electronic Engineering