Phase locked DRO/CRO for space use

A Dielectric Resonator Oscillator (DRO) or Coaxial Resonator Oscillator (CRO) may be phase locked to a Temperature Compensated Crystal Oscillator (TCXO) to produce small, lightweight, rugged oscillators for use in communications spacecraft. These units combine the long term stability and excellent c...

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Bibliographic Details
Published inProceedings of International Frequency Control Symposium pp. 1015 - 1023
Main Authors Hitch, B., Holden, T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1997
Subjects
Circuits
Coaxial components
Costs
Dielectrics
Filters
Frequency
Microwave oscillators
Phase locked loops
Phase noise
Stability
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Summary:A Dielectric Resonator Oscillator (DRO) or Coaxial Resonator Oscillator (CRO) may be phase locked to a Temperature Compensated Crystal Oscillator (TCXO) to produce small, lightweight, rugged oscillators for use in communications spacecraft. These units combine the long term stability and excellent close-in phase noise of crystal oscillators with the superior phase noise of DRO/CRO's at higher offset frequencies. Further advantages of this technique over other techniques (such as a crystal oscillator followed by a multiplier chain) include smaller mass and volume, lower cost, and higher reliability.
ISBN:9780780337282
078033728X
DOI:10.1109/FREQ.1997.639225