STW two-port asynchronous resonator on BT-cut quartz
A surface transverse wave (STW) 2-port asynchronous resonator on BT-cut (-50.5 degrees YX90 degrees) quartz was fabricated, measured, and calculated. At a frequency of about 332.4 MHz, insertion loss, and loaded and unloaded quality factors of about 11 dB, 8,000, and 11,500, respectively, were achie...
| Publié dans: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control. - 1986. - 55(2008), 11 vom: 13. Nov., Seite 2519-21 |
|---|---|
| Auteur principal: | |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2008
|
| Accès à la collection: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control |
| Sujets: | Letter Quartz 14808-60-7 |
| Résumé: | A surface transverse wave (STW) 2-port asynchronous resonator on BT-cut (-50.5 degrees YX90 degrees) quartz was fabricated, measured, and calculated. At a frequency of about 332.4 MHz, insertion loss, and loaded and unloaded quality factors of about 11 dB, 8,000, and 11,500, respectively, were achieved. A turnover temperature of about 20 degrees C and a quadratic frequency-temperature coefficient of approximately -15 ppb/degrees C(2) were obtained. Compared with STW resonators on AT-cut quartz (36 degrees YX90 degrees), this temperature coefficient is about 4 times smaller, and about 2 times smaller than that for SAW on an ST cut. STW resonators and filters on BT-cut quartz can be used in applications requiring improved temperature stability |
|---|---|
| Description: | Date Completed 30.01.2009 Date Revised 03.12.2008 published: Print Citation Status MEDLINE |
| ISSN: | 1525-8955 |
| DOI: | 10.1109/TUFFC.960 |