Room temperature dual-mode oscillator - first results

Author

Torrealba, J.A. ; Tobar, M.E. ; Ivanov, E.N. ; Locke, C.R. ; Hartnett, J.G. ; le Floch, J.-M. ; Cros, D.

Author_Institution

Sch. of Phys., Western Australia Univ., Crawley, WA, Australia

fYear

2005

fDate

29-31 Aug. 2005

Abstract

A frequency stability analysis of a room temperature frequency-temperature compensated dual-mode resonator oscillator (patent pending) is presented. Using a single crystal cylindrical sapphire resonator, 40 mm in diameter and 20 mm high, two orthogonally polarized whispering gallery modes were simultaneously excited, with the difference frequency temperature dependence aned near 304 K. The standard Allan deviation of the 3.39 GHz beat between the two modes was measured to be approximately 8 × 10^-12 between 1 and 4s.

Keywords

crystal oscillators; frequency stability; microwave oscillators; sapphire; whispering gallery modes; 20 nm; 3.39 GHz; 40 nm; Al₂O₃; Allan deviation; dual-mode oscillator; dual-mode resonator oscillator; frequency stability analysis; frequency-temperature compensation; single crystal cylindrical sapphire resonator; whispering gallery modes; Copper; Electromagnetic coupling; Helium; Microwave oscillators; Polarization; Probes; Q factor; Resonant frequency; Temperature; Whispering gallery modes;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium and Exposition, 2005. Proceedings of the 2005 IEEE International

Print_ISBN

0-7803-9053-9

Type

conf

DOI

10.1109/FREQ.2005.1573961

Filename

1573961