SIDE-EFFECTS OF FM BY HIGH FREQUENCIES ON M-TYPE BACKWARD WAVE OSCILLATOR ALVES

Abstract

The effect on six types of backward wave oscillator valve covering the frequency range from 520 to 1370 Mc/s and 2500 to 4000 Mc/s is described under conditions where they are frequency modulated at frequencies from 2.5 to 16 Mc/s over deviations extending to the full tuning range of the valve. The main effect common to all types is a reduction in RF power output, the greatest reduction occurring with high modulating frequencies and large deviations. It is concluded that if modulation over the tuning range of the valve is necessary, the highest usable modulating frequency ranges from 8 Mc/s for the lowest frequency valve tested to 16 Mc/s for the highest.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1965
Accession Number
AD0396360

Entities

People

  • A. Sewards
  • W. F. Yeates

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Amplitude Modulation
  • Analyzers
  • Backward Wave Oscillators
  • Capacitance
  • Frequency
  • Frequency Modulation
  • Government Procurement
  • Materials
  • Measurement
  • Modulation
  • Modulators
  • Oscillators
  • Power
  • Radio Frequency Power
  • Side Effects
  • Spectrum Analyzers

Readers

  • Electronics Engineering