Wide Bandwidth Far-Infrared Mixing Using a High-T(c) Superconducting Bolometer

Abstract

We report on the gain bandwidth and noise characteristics of far-infrared mixers using high-Tc superconducting YBa2Cu3O7 (YBCO) thin films. The YBCO films are patterned into lattice-cooled hot-electron bolometers (HEBs) coupled to an integrated antenna and transmission line. Heterodyne and homodyne down- conversion using LO frequencies of 115 GHz and 585 GHz show a device conversion gain of as high as -9.5 dB at 66 K using 1 micro W of LO power. Y-factor noise measurements show a double-sideband noise temperature of 3400 K at 66 K. Both gain and noise bandwidths show a single-pole roll-off with -3 dB point near 10 GHz.

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Document Details

Document Type
Technical Report
Publication Date
Sep 29, 2000
Accession Number
ADP011749

Entities

People

  • Mark Lee
  • Richard C. Li

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Antennas
  • Bandwidth
  • Bolometers
  • Conversion
  • Electron Energy
  • Electrons
  • Films
  • Frequency
  • Low Noise Amplifiers
  • Measurement
  • Microwave Amplifiers
  • Scattering
  • Sidebands
  • Terahertz Radiation
  • Thin Films
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Superconducting Magnet Technology

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene