Microwave and Millimeter-Wave Oscillators and Planar Power Combining Structures for QWITT and Gunn Diodes

Abstract

Quantum well (QW) diode oscillators have recently been shown to have the potential to generate power in the millimeter (mm) and sub-mm wave region. The small signal microwave impedance of a modified QW device called the quantum well injection transmit time (QWITT) diode is measured and compared with theoretical predictions. Based on the small signal impedance of the device, several QWITT oscillators were designed and fabricated. The highest power ever reported for a QW diode oscillator was obtained at about 8 GHz. Keywords: Quantum well oscillators, QWITT diode, Power combining, Quasi optical power combining.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1990
Accession Number
ADA226246

Entities

People

  • Amir Mortazawi
  • Dean Neikirk
  • Tatsuo Itoh

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bandwidth
  • Circuit Analysis
  • Electronics Laboratories
  • Harmonic Generators
  • Impedance
  • Intermediate Frequencies
  • Metal-Semiconductor Junctions
  • Millimeter Waves
  • Oscillation
  • Oscillators
  • Quantum Wells
  • Radiation
  • Radiation Patterns
  • Resonant Circuits
  • Spectrum Analyzers
  • Transmission Lines
  • X Band

Fields of Study

  • Materials science

Readers

  • Educational Psychology
  • Microwave Engineering.
  • Semiconductor Device Technology

Technology Areas

  • 5G
  • Quantum Computing