RF oscillators stabilized by temperature compensated HBARs based on LiNbO3/Quartz combination

Author

Baron, T. ; Martin, G. ; Lebrasseur, E. ; François, B. ; Ballandras, S. ; Lasagne, P.-P. ; Reinhardt, A. ; Chomeloux, Luc ; Lesage, Jean-Marc ; Gachon, D.

Author_Institution

Time & Freq. Dept., UFC, Besancon, France

fYear

2011

fDate

2-5 May 2011

Firstpage

1

Lastpage

4

Abstract

In this work, we develop a radio-frequency oscillator operating near the 434 MHz-centered ISM band to validate the temperature compensated capability of HBAR based on combining LiNbO₃ and Quartz single crystal plates for such purposes. Electrical and thermoelectric characterizations have shown QF product in excess of 10¹³ and a third order frequency-temperature behavior. A phase noise better than -160dBc/Hz at 100kHz has been measured as well as a -165dBc/Hz level at 1MHz from the carrier. First results showing that the resonator stability is better than 10^-9 under room conditions. Further work is expected to lower that level well below 10^-10.

Keywords

acoustic resonators; compensation; crystal oscillators; lithium compounds; niobium compounds; radiofrequency oscillators; thermoelectricity; HBAR; ISM hand; LiNbO₃; RF oscillator; frequency 1 MHz; frequency 100 kHz; frequency 434 MHz; high overtone bulk acoustic resonator; quartz single crystal plate; radiofrequency oscillator; resonator stability; temperature compensation; thermoelectric characterization; Harmonic analysis; Lithium niobate; Phase noise; Resonant frequency; Stability analysis; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International

Conference_Location

San Fransisco, CA

ISSN

1075-6787

Print_ISBN

978-1-61284-111-3

Type

conf

DOI

10.1109/FCS.2011.5977814

Filename

5977814