Accession Number : AD0758677

Title :   Investigation of Phase Locking of Microwave Oscillators.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Clark,Jackie Lee

Report Date : DEC 1972

Pagination or Media Count : 38

Abstract : The paper is a report on experimental thesis work which investigated phase locking of a reflex klystron with a more stable micro-wave source. A discussion of the characteristics and components of a phase-locked loop and a qualitative overview of the theory of phase-locked loop operation is included. The specific circuit which accomplished phase locking at approximately 9.1 GHZ is described, with particular emphasis on the use of a crystal mixer to provide the feedback voltage for klystron frequency control. Capture and tracking ranges of this phase-locked loop are predicted and determined experimentally. The stabilization of the reflex klystron frequency by the phase-locked loop is demonstrated by spectrum photographs. A phase detector circuit which is expected to provide a wide capture and tracking range with the VCO offset from the reference frequency is proposed and described. Progress toward realization of this detector and suggestions for its improvement are included. (Author)

Descriptors :   (*MICROWAVE OSCILLATORS, PHASE LOCKED SYSTEMS), REFLEX KLYSTRONS, X BAND, CRYSTAL MIXERS, PHASE DETECTORS, THESES

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE