NEW HIGH-POWER ELECTRONIC TUNING CAPABILITIES BY EXPLOITATION OF TENSOR RELATIONSHIP OF ABSORPTION AND DISPERSION IN FERRITES.

Abstract

A technique is described for high speed electronic tuning of an inductive device capable of handling VHF powers in excess of 100 watts CW. Electronic tuning is accomplished by means of a controlled dc bias applied to an inductor with a ferrite core. As opposed to conventional magnetic bias tuning the ferrite core is operated above saturation. In this mode it is seen the ferrite cores can be operated with high r.f. fields with no detectable degradation of Q and negligible distortion products. Specific examples are presented of the application of this new capability in medium power amplifiers operating over the frequency range of 70 to 300 MHz. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1969
Accession Number
AD0688511

Entities

People

  • Emanuel Gikow

Organizations

  • United States Army Communications-Electronics Command

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Amplifiers
  • Degradation
  • Dispersions
  • Distortion
  • Ferrites
  • Frequency
  • Inductors
  • Medium Power
  • Power
  • Power Amplifiers
  • Saturation

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Sensor Fusion and Tracking Systems.

Technology Areas

  • Microelectronics