Dual-mode sapphire loaded cavity microwave oscillator with a frequency divider in temperature control loop
Dual-mode sapphire loaded cavity microwave oscillator with a frequency divider in temperature control loop
- Author(s): D.P. Tsarapkin
- DOI: 10.1049/cp:20040881
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- Author(s): D.P. Tsarapkin Source: 18th European Frequency and Time Forum (EFTF 2004), 2004 p. 340 – 344
- Conference: 18th European Frequency and Time Forum (EFTF 2004)
- DOI: 10.1049/cp:20040881
- ISBN: 0-86341-384-6
- Location: Guildford, UK
- Conference date: 5-7 April 2004
- Format: PDF
This paper develops the effective method of sapphire loaded cavity (SLC) microwave oscillator frequency stabilization proposed two years ago [1]. The method uses the dual-mode temperature frequency control based on two orthogonal "whispering gallery" (WG) modes and differs from similar approaches by applying of output microwave frequency division to form a control signal. The desired resonant spectrum is provided by selecting a WGE-WGH modes' pair via 3D FE electrodynamic simulation. Main attention is paid to the case of the 1:2 SLC resonant frequencies' ratio.
Inspec keywords: frequency dividers; whispering gallery modes; finite element analysis; frequency stability; sapphire; microwave oscillators; frequency control; temperature control; electrodynamics
Subjects: Frequency control; Thermal variables control; Oscillators; Solid-state microwave circuits and devices; Waveguide and microwave transmission line components; Convertors
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