High Power Millimeter Wave Amplifier

Abstract

This interim report describes the measured performance of a three cavity Gyroklystron amplifier designed to operate at X-band with the signal frequency near the second harmonic of the Cyclotron frequency. Efficiency and gain were measured as a function of various operating parameters. Performance of the experimental device was significantly limited by the need to avoid spurious oscillations. The maximum gain was 10 dB and the maximum efficiency was 8 percent. Noise figure and spectrum measurements yielded values similar to high power linear beam tubes. Design considerations for converting the experimental Gyroklystron to a Gyro-TWT are discussed. A Gyro-TWT using the TE11 cylindrical mode with operation at the fundamental Cyclotron frequency was found to be compatible with existing hardware. Considerations for a second experiment using the TE01 cylindrical mode and the second Cyclotron harmonic are also discussed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1978
Accession Number
ADA062966

Entities

People

  • Howard Jory
  • Steve Heji

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Bandwidth
  • Coils
  • Contracts
  • Cyclotron Resonance
  • Cyclotrons
  • Efficiency
  • Frequency
  • Klystrons
  • Magnetic Fields
  • Microwave Tubes
  • Millimeter Waves
  • Oscillation
  • Reflex Klystrons
  • Resonance
  • Transmission Lines
  • Waveguides

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • 5G
  • 5G - Internet of Things