Abstract
Authors realized a one port surface acoustic wave (SAW) resonator composed of grooved-Cu- electrodes/4°Y-X· LiNbO 3 with an ultra wide bandwidth of 17 %. This time, the authors fabricated band pass type tunable filters using the SAW resonators instead of inductances and 2 kind of capacitors of interdigital capacitors (IDCs) and Si-diode variable capacitors. As a the result, when the IDCs were used, the tunable filter with the frequency tunable range of 6.8 % has been obtained by using 3 kinds of LiNbO 3 substrates having different capacitances of IDCs and the same designed SAW resonators. On the other hand, when the Si-diode variable capacitors were used, by applying the voltage of 1.2 V to 10 V to the Si variable capacitors (Toshiba JDV2S71E) in order to adjust the capacitance, a tunable filter with the frequency tunable range of 6.1% has been continuously obtained for the first time.
| Original language | English |
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| Title of host publication | 2011 IEEE International Ultrasonics Symposium, IUS 2011 |
| Pages | 559-562 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2011 Dec 1 |
| Event | 2011 IEEE International Ultrasonics Symposium, IUS 2011 - Orlando, FL, United States Duration: 2011 Oct 18 → 2011 Oct 21 |
Other
| Other | 2011 IEEE International Ultrasonics Symposium, IUS 2011 |
|---|---|
| Country/Territory | United States |
| City | Orlando, FL |
| Period | 11/10/18 → 11/10/21 |
ASJC Scopus subject areas
- Acoustics and Ultrasonics