Title :
LGT alternative quartz materials for ultra-stable oscillators
Author :
Joel, Imbaud ; Jean-Jacques, Boy ; Fabrice, Sthal
Author_Institution :
ENSMM, UTBM, Besancon, France
Abstract :
This paper deals with the main results about LGT crystals and, as far as possible, indicates the comparative aspects with the quartz crystal. We present also the manufacturing process and their differences with a quartz resonator. The passive noise analyses and the drive level effect are presented in the paper as well as the g-sensitivity and the magnetic sensitivity of LGT oscillators. Example of sustaining electronics design is presented and discussed. Their simulations results are presented too. The thermal regulation design and performance are analyzed as well as noise and aging measurements of 10 MHz oscillators. Finally, the use of LGT crystals in frequency and time applications is discussed and some perspectives are presented as conclusions.
Keywords :
ageing; circuit stability; crystal oscillators; lanthanum compounds; network synthesis; noise measurement; sensitivity analysis; LGT alternative quartz materials; LGT crystals; LGT oscillators; La3Ga5.5Ta0.5O14; aging measurements; drive level effect; electronics design; frequency 10 MHz; frequency applications; g-sensitivity; magnetic sensitivity; manufacturing process; noise measurements; passive noise analyses; quartz crystal; quartz resonator; thermal regulation design; time applications; ultra-stable oscillators; Annealing; Crystals; Noise; Oscillators; Resonant frequency; Sensitivity; Temperature sensors; LGT; Langatate; accelerometric sensitivity; actve noise; magnetic sensitivity; oscillator; passive noise; ultra-stable;
Conference_Titel :
Frequency Control Symposium (FCS), 2014 IEEE International
Conference_Location :
Taipei
DOI :
10.1109/FCS.2014.6859848
