AN IMPROVED SYSTEM FOR FORWARD TRANSFER CHARACTERISTIC MEASUREMENTS USING MICROWAVE SWEEP OSCILLATORS.

Abstract

This report describes the use of superheterodyne techniques as applied to sweep oscillator measurement systems. The advantages of the superheterodyne system in achieving a dynamic range superior to that obtained by conventional means are clearly demonstrated. The sweep oscillator system described in this report provides a dynamic range of 70 dB as opposed to 20 or 30 dB for most sweep oscillators. The superheterodyne system requires two sweep oscillators; one to serve as the signal source, the other for the local oscillator. The two oscillators must be swept in such a way as to produce a fixed frequency IF signal. To achieve this tracking capability, an AFC loop is incorporated to maintain the desired IF offset frequency between the two oscillators. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1967
Accession Number
AD0812270

Entities

People

  • Charles S. Wilson

Organizations

  • Georgia Tech

Tags

DTIC Thesaurus Topics

  • Dynamic Range
  • Electronic Equipment
  • Frequency
  • Frequency Bands
  • Local Oscillators
  • Measurement
  • Microwaves
  • Oscillators
  • Radio Frequency
  • Radio Frequency Oscillators

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Electronics Engineering