Title :
High performance SAW frequency source for airborne applications
Author :
Penavaire, Louis ; Calisti, Serge ; Gragnolati, Jean-Pierre ; Raymond, Frédéric
Abstract :
The optimization, manufacturing, and characterization of surface acoustic wave (SAW) resonator oscillators in the 500-MHz range are discussed. The all-quartz packaged resonators exhibit characteristics allowing their use for military airborne radars and systems. Frequency stability over the operating temperature range is less than 1 p.p.m. p.p. Results show that aging less than 1 p.p.m./year can be achieved. The measured SSB phase noise spectrum under random vibrations corresponding to levels encountered in airborne applications are -33 dBc/Hz at 600 Hz offset frequency from the carrier, -139 dBc/Hz at 1 kHz, and less than -165 and -175 dBc/Hz at, respectively, 10 and 100 kHz from the carrier
Keywords :
acoustic noise; acoustic resonators; ageing; frequency stability; military systems; oscillators; radar systems; surface acoustic wave devices; 500 MHz; SAW frequency source; SiO2; aging; airborne applications; all-quartz packaged resonators; device characterization; device manufacturing; device optimisation; frequency stability; high performance; measured SSB phase noise spectrum; offset frequency; operating temperature range; random vibrations; resonator oscillators; surface acoustic wave; Acoustic waves; Airborne radar; Frequency; Manufacturing; Oscillators; Packaging; Stability; Surface acoustic waves; Temperature distribution; Vibration measurement;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234168
