Phase locked DRO/CRO for space use

Author

Hitch, Ben ; Holden, Tom

Author_Institution

Space Syst., Palo Alto, CA, USA

fYear

1997

fDate

28-30 May 1997

Firstpage

1015

Lastpage

1023

Abstract

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

Keywords

circuit reliability; circuit stability; dielectric resonator oscillators; microwave circuits; microwave oscillators; phase locked oscillators; phase noise; space vehicle electronics; close-in phase noise; coaxial resonator oscillator; communications spacecraft; cost; dielectric resonator oscillator; long term stability; mass; offset frequencies; phase locked DRO/CRO; reliability; rugged oscillators; temperature compensated crystal oscillator; volume; Circuits; Coaxial components; Costs; Dielectrics; Filters; Frequency; Microwave oscillators; Phase locked loops; Phase noise; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 1997., Proceedings of the 1997 IEEE International

Conference_Location

Orlando, FL

Print_ISBN

0-7803-3728-X

Type

conf

DOI

10.1109/FREQ.1997.639225

Filename

639225