'A CONSTANT BANDWIDTH, WIDE RANGE, TRANSISTORIZED LOGARITHMIC AMPLIFIER',

Abstract

An analysis of the breakpoint conditions necessary to form a constant bandwidth, tuned radio frequency, piecewise logarithmic amplifier is presented. The amplifier uses DC feedback rather than saturation or bias control techniques and the logarithmic transfer function is essentially independent of temperature and transistor parameters. The suitability of the device for pulse operation is considered, along with the effects of low frequency and high frequency modulation, and of operation at frequencies other than resonance. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 30, 1967
Accession Number
AD0650694

Entities

People

  • F. W. Hopwood

Organizations

  • Pennsylvania State University

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Bandwidth
  • Frequency
  • Frequency Bands
  • Frequency Modulation
  • Logarithmic Amplifiers
  • Modulation
  • Radio Frequency
  • Transfer Functions

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Integrated Circuit Design and Technology.
  • Plasma Physics / Magnetohydrodynamics