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

doi:10.1109/ULTSYM.2008.0385

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

ENG - Robotics

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

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.

Original language	English
Article number	4803206
Pages (from-to)	1580-1583
Number of pages	4
Journal	Proceedings - IEEE Ultrasonics Symposium
DOIs	https://doi.org/10.1109/ULTSYM.2008.0385
Publication status	Published - 2008 Dec 1
Event	2008 IEEE International Ultrasonics Symposium, IUS 2008 - Beijing, China Duration: 2008 Nov 2 → 2008 Nov 5

Keywords

Cu-electrode
Duplexer
PCS
SAW
TCF

ASJC Scopus subject areas

Acoustics and Ultrasonics

Access to Document

10.1109/ULTSYM.2008.0385

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

abstract = "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.",

keywords = "Cu-electrode, Duplexer, PCS, SAW, TCF",

author = "Yasuharu Nakai and Takeshi Nakao and Kenji Nishiyama and Michio Kadota",

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journal = "Proceedings - IEEE Ultrasonics Symposium",

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note = "2008 IEEE International Ultrasonics Symposium, IUS 2008 ; Conference date: 02-11-2008 Through 05-11-2008",

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T1 - Surface acoustic wave duplexer composed of SiO2 film with convex and concave on co-electrodes/LiNbO3 structure

AU - Nakai, Yasuharu

AU - Nakao, Takeshi

AU - Nishiyama, Kenji

AU - Kadota, Michio

PY - 2008/12/1

Y1 - 2008/12/1

N2 - 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.

AB - 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.

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KW - Duplexer

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KW - SAW

KW - TCF

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