STUDY OF PHASE-SHIFT AMPLIFIER TECHNIQUES

Abstract

Progress was made in studying simple-varactor, multiple-varactor and ferrite-core phase-shift amplifiers. A single-varactor amplifier was built in an optimum structure. The latter operates in the reflection mode with a circulator. The principle weakness of this structure was the diode detector, so considerable study has been made of this detector. Efficiencies in excess of 50 percent have now been measured. Study was made of a transmission line periodically loaded with varactors to see what benefits this technique will provide. A suitable structure was designed and is being tested. Also described are ferrite core techniques, which are being used to investigate phase-shift amplifiers with multiple pumping. A related effect, employing subharmonic oscillations to increase gain, is also discussed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1963
Accession Number
AD0407172

Entities

People

  • D. K. Adams

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bandwidth
  • Detection
  • Detectors
  • Electrical Engineering
  • Electron Tubes
  • Electronics
  • Electronics Laboratories
  • Engineering
  • Engineers
  • Ferrites
  • Frequency Shift
  • Klystrons
  • Materials Laboratories
  • Modulation
  • Parametric Amplifiers
  • Phase Detectors
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Microwave Engineering.