Title :
Spectral purity of acoustic resonator oscillators
Author :
Parker, Thomas E. ; Montress, Gary K.
Author_Institution :
Raytheon Co., Lexington, MA, USA
Abstract :
The spectral purity of state-of-the-art oscillators that use acoustic resonators in the frequency range of 5 to 500 MHz is surveyed, with the primary emphasis placed on oscillators that use bulk acoustic wave and surface acoustic wave devices on single crystal quartz. The phase noise characteristics of low-noise oscillators are analyzed in the context of Leeson´s model of feedback oscillator phase noise, and particular attention is given to flicker frequency noise levels and white phase noise floors. Procedures and methods for reducing phase noise levels are discussed along with an analysis of reported attempts to obtain improved spectral purity
Keywords :
acoustic resonators; crystal resonators; frequency stability; radiofrequency oscillators; random noise; surface acoustic wave devices; 5 to 500 MHz; Leeson´s model; SiO2; acoustic resonator oscillators; bulk acoustic wave; feedback oscillator phase noise; flicker frequency noise levels; low-noise oscillators; phase noise characteristics; single crystal quartz; spectral purity; surface acoustic wave; white phase noise floors; Acoustic devices; Acoustic waves; Context modeling; Feedback; Noise level; Oscillators; Phase noise; Resonant frequency; Surface acoustic wave devices; Surface acoustic waves;
Conference_Titel :
Frequency Control Symposium, 1992. 46th., Proceedings of the 1992 IEEE
Conference_Location :
Hershey, PA
Print_ISBN :
0-7803-0476-4
DOI :
10.1109/FREQ.1992.269994
