WIDEBAND FM TRANSMITTERS AND RF-TO-RF REPEATERS FOR SPACE APPLICATIONS,

Abstract

This report discusses the design philosophy of wideband FM transmitters and RF repeaters for space applications in the S-band and X-band frequency ranges. The salient features of several transmitter configurations, including direct RF generation at the output frequency, are compared. The discussion shows the solid state microwave oscillator to be a logical choice to generate a wideband FM signal for space applications. Back-toback repeaters, heterodyne repeaters, and reflex repeaters are compared for use in a satellite communication relay link. The RF-to-RF repeater, utilizing a traveling wave tube in a reentrant or reflex mode, is shown to give superior performance for space missions requiring broadband, multiple-access capabilities. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1965
Accession Number
AD0618051

Entities

People

  • R. T. Murphy

Organizations

  • Lockheed Martin Missiles and Space

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Broadband
  • Frequency
  • Microwave Oscillators
  • Multiple Access
  • Oscillators
  • Repeaters
  • Satellite Communications
  • Space Missions
  • Transmitters
  • Traveling Wave Tubes
  • Traveling Waves
  • X Band

Readers

  • Electronics Engineering
  • Radio communications and signal processing.
  • Systems Analysis and Design

Technology Areas

  • Space