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| Presentation | 2008-04-25 13:00 SAW Duplexer composed of SiO2 with Convex and Concave on Cu-electrode/LiNbO3 Structure Yasuharu Nakai, Takeshi Nakao, Kenji Nishiyama, Michio Kadota (Murata)  US2008-3 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Currently, the duplexers consisting of surface acoustic wave or film bulk acoustic resonators have been developed actively. Authors have already realized the 3.0×2.5×1.2 or 2.5×2.0×0.48mm3 size SAW duplexer for US-PCS which has a good temperature coefficient of frequency (TCF) by using the SH wave on flattened-SiO2/Cu/36～48°YX-LiTaO3 structure and Rayleigh wave on SiO2/Cu/120～128°YX-LiNbO3 structure. Generally, the surface of the SiO2 on the interdigital transducer (IDT) electrode fingers to be convex. However, this device’s reflection coefficient has been increased and the TCF and power durability have been improved by making the surface of the SiO2 on the IDT’s gap to be convex. In this paper, authors describe their calculation and their experimental results. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | SAW duplexer / LiNbO3 / Rayleih wave / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 19, US2008-3, pp. 11-16, April 2008. | |
| Paper # | US2008-3 | |
| Date of Issue | 2008-04-18 (US) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2008-3 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2008-04-25 - 2008-04-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Nonlinear acoustics, etc. |
| Paper Information | |
| Registration To | US |
| Conference Code | 2008-04-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | SAW Duplexer composed of SiO2 with Convex and Concave on Cu-electrode/LiNbO3 Structure |
| Sub Title (in English) | |
| Keyword(1) | SAW duplexer |
| Keyword(2) | LiNbO3 |
| Keyword(3) | Rayleih wave |
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| 1st Author's Name | Yasuharu Nakai |
| 1st Author's Affiliation | Murata Mfg. Co., Ltd. (Murata) |
| 2nd Author's Name | Takeshi Nakao |
| 2nd Author's Affiliation | Murata Mfg. Co., Ltd. (Murata) |
| 3rd Author's Name | Kenji Nishiyama |
| 3rd Author's Affiliation | Murata Mfg. Co., Ltd. (Murata) |
| 4th Author's Name | Michio Kadota |
| 4th Author's Affiliation | Murata Mfg. Co., Ltd. (Murata) |
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| Speaker | Author-1 |
| Date Time | 2008-04-25 13:00:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2008-3 |
| Volume (vol) | vol.108 |
| Number (no) | no.19 |
| Page | pp.11-16 |
| #Pages | 6 |
| Date of Issue | 2008-04-18 (US) |
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