Electronically Tunable Phase Locked Loop Oscillator.

Abstract

This report describes the design and development of a low noise, high power, variable oscillator incorporating a high 'Q' electronically tunable resonator as the frequency determining element. The VCO provides improved EMC performance in phase locked synthesizers which are a part of communications equipments. The oscillator combines a low noise VMOS transistor with the selectivity and out-of-band attenuation of a coaxial resonator to provide superior EMC performance. Several oscillator designs were examined and the basis for the final configuration is presented. Oscillator noise is discussed and models for analysis are explained. A brass board model was constructed and tested and the technical results are presented.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1982
Accession Number
ADA113253

Entities

People

  • Charles R. Jackson
  • Mathew Balasis
  • Michael R. Davis

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Bandwidth
  • Electron Tubes
  • Frequency Agility
  • Frequency Bands
  • Frequency Stabilizers
  • Frequency Synthesizers
  • Lc Circuits
  • Low Noise
  • Modulation
  • Modulators
  • Noise Modulation
  • Resonant Circuits
  • Signal Generators
  • Test And Evaluation
  • Transmission Lines
  • Tuned Circuits

Fields of Study

  • Physics

Readers

  • Electronics Engineering

Technology Areas

  • Microelectronics