Title :
Theoretical and experimental evidence for superior intrinsic Q of STW devices on rotated Y-cut quartz
Author :
Kosinski, John A. ; Pastore, Robert ; Avramov, Ivan D.
Author_Institution :
US Army CECOM AMSEL-RD, Fort Monmouth, NJ, USA
Abstract :
Several advantages of STW devices are by now well known. These include simultaneous moderately high acoustic velocity and zero temperature coefficient of frequency, along with extremely high power handling capability. In this paper we present theoretical and experimental evidence of an additional advantage of STW devices on quasi-AT-cut quartz: the intrinsic Q of such devices is superior to that of ST-cut SAW devices and AT-cut BAW devices, with the STW having Q×f≈3.25×1013 Hz
Keywords :
Q-factor; acoustic microwave devices; frequency response; phase noise; surface acoustic wave oscillators; surface acoustic wave resonators; SAW resonators; SiO2; frequency response; group delay response; high intrinsic Q; low microwave region; low-noise oscillators; phase noise; quasi-AT-cut quartz; rotated Y-cut quartz; single-port device; surface transverse wave devices; two-port device; waveguided pure-shear SSBW mode; Acoustic devices; Bulk acoustic wave devices; Frequency; Gratings; Microwave devices; Microwave technology; Phase noise; Surface acoustic wave devices; Temperature; Viscosity;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841442
