Surface acoustic wave duplexer composed of SiO2 film with convex and concave on co-electrodes/LiNbO3 structure

Yasuharu Nakai, Takeshi Nakao, Kenji Nishiyama, Michio Kadota

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

Authors have already realized 3.0×2.5×1.2 or 2.5×2.0×0.48mm3 size SAW duplexers for personal communication in US with an excellent temperature coefficient frequency (TCF) by using the Rayleigh wave on the SiO2/Cuelectrode/ 120°-128°YX-LiNbO3 and 36°-48°YX-LiTaO3 structures. time, authors intentionally attempted to make the portions on the SiO2 film over the gap of interdigital (IDTs). As the results, the calculated and measured showed the increase of the reflection coefficient and the of the TCF. In addition to them, the measured showed that a power durability have been drastically improved any deterioration in the frequency characteristics making the convex portions on the SiO2 film over the gap of IDTs.

本文言語English
論文番号4803206
ページ(範囲)1580-1583
ページ数4
ジャーナルProceedings - IEEE Ultrasonics Symposium
DOI
出版ステータスPublished - 2008 12 1
イベント2008 IEEE International Ultrasonics Symposium, IUS 2008 - Beijing, China
継続期間: 2008 11 22008 11 5

ASJC Scopus subject areas

  • 音響学および超音波学

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