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Ultra-stable, low phase noise dielectric resonator stabilized oscillators for military and commercial systems

Author
Mizan, Muhammad
Published
Feb 1, 1993.
Physical Description
1 electronic document
Additional Creators
Higgins, Thomas and Sturzebecher, Dana
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
EPSD has designed, fabricated and tested, ultra-stable, low phase noise microwave dielectric resonator oscillators (DRO's) at S, X, Ku, and K-bands, for potential application to high dynamic range and low radar cross section target detection radar systems. The phase noise and the temperature stability surpass commercially available DROs. Low phase noise signals are critical for CW Doppler radars, at both very close-in and large offset frequencies from the carrier. The oscillators were built without any temperature compensation techniques and exhibited a temperature stability of 25 parts per million (ppm) over an extended temperature range. The oscillators are lightweight, small and low cost compared to BAW & SAW oscillators, and can impact commercial systems such as telecommunications, built-in-test equipment, cellular phone and satellite communications systems. The key to obtaining this performance was a high Q factor resonant structure (RS) and careful circuit design techniques. The high Q RS consists of a dielectric resonator (DR) supported by a low loss spacer inside a metal cavity. The S and the X-band resonant structures demonstrated loaded Q values of 20,300 and 12,700, respectively.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19930012990.
Accession ID: 93N22179.
NASA, Washington, Technology 2002: The Third National Technology Transfer Conference and Exposition, Volume 2; p 289-295.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15671386