Solid-State BWO Modulator.

Abstract

An S-band linear FM (chirp) signal generator, utilizing a backward wave oscillator (BWO) and a solid-state BWO modulator-driver circuit, was developed as part of an experimental high-range-resolution radar. The modulator-driven BWO was found to have a 3.5 to 2.9 GHz linear sweep with a 600-MHz bandwidth; a 0.300 microsecond pulsewidth; and a pulse compression ratio or time-bandwidth product of 180. In addition, it has the capability of operating to a maximum prf of 25 kHz without distortion of the chirp signal, and its maximum deviation from linear FM is less than 0.07 percent. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 08, 1969
Accession Number
AD0867916

Entities

People

  • D. B. Kavanagh
  • M. H. Mott

Organizations

  • Navy Electronics Laboratory

Tags

DTIC Thesaurus Topics

  • Backward Wave Oscillators
  • Bandwidth
  • Compression
  • Compression Ratio
  • Distortion
  • Energy Systems
  • Frequency Synthesizers
  • Generators
  • Microsecond Time
  • Modulators
  • Oscillators
  • Pulse Compression
  • Signal Generators
  • Waveform Generators

Fields of Study

  • Physics

Readers

  • Radar Systems Engineering.