| Presentation | 1996/9/18 Reversal-of-Directivity Transducers on a Li_2B_4O_7 NSPUDT Substrate Masao Takeuchi, Hiroyuki Odagawa, Kazuhiko Yamanouchi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Natural single phase unidirectional transducers (NSPUDT) have attracted much attention for implementing low-loss SAW devices. Since the unidirectionality of NSPUDT is inherent to the substrate orientation, it is necessary to make the receiving transducer unidirectional in the opposite direction for obtaining a low-loss filter using two transducers with reverse directivity. Previously we have proposed new transducer configurations (RDT: Reversal-of-Directivity Transducer) to reverse the directivity of NSPUDT substrates. In this paper, we report the RDTs on the NSPUDT orientations of a Li_2B_4O_7 substrate reported by authors. Experimental results show the good reversed unidirectionality without degradation of directivity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | SAW / unidirectional transducer / NSPUDT / Li_2B_4O_7 / reversal-of-directivity |
| Paper # | US96-46 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 1996/9/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reversal-of-Directivity Transducers on a Li_2B_4O_7 NSPUDT Substrate |
| Sub Title (in English) | |
| Keyword(1) | SAW |
| Keyword(2) | unidirectional transducer |
| Keyword(3) | NSPUDT |
| Keyword(4) | Li_2B_4O_7 |
| Keyword(5) | reversal-of-directivity |
| 1st Author's Name | Masao Takeuchi |
| 1st Author's Affiliation | Research Institute of Electrical Communication, Tohoku University() |
| 2nd Author's Name | Hiroyuki Odagawa |
| 2nd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University |
| 3rd Author's Name | Kazuhiko Yamanouchi |
| 3rd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University |
| Date | 1996/9/18 |
| Paper # | US96-46 |
| Volume (vol) | vol.96 |
| Number (no) | 249 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |