Accurate MM-Wave-to-THz Power Measurements With Large-Area Pyroelectric Detectors

H. Bagherzadeh, W. Zhang, E. R. Brown

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present an improved method for measuring power at ∼100 GHz and above using a large-area (5-mm diam) LiTaO3 pyroelectric detector. The pyroelectric element is packaged in a lid-free TO-5 can, which in turn is mated to one end of a 1/2-inch-diam brass tube whose opposite end is flared for improved coupling efficiency. This 'light-pipe'-like arrangement is cross-calibrated against a thermistor-based waveguide Anritsu ML83A power sensor using a 104-GHz Gunn oscillator and precision attenuator. It also stabilizes the pyroelectric element against background (IR) radiation and air currents. The resulting power detector is useful in the ∼10-nW-to-1-uW region where waveguide power sensors do not operate and free-space sensors like Golay cells and pyroelectrics have always been uncalibrated and unstable.
Original languageEnglish
Title of host publicationProceedings of the 2016 IEEE National Aerospace and Electronics Conference-Ohio Innovation Summit, NAECON-OIS 2016
EditorsRonald Brower
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages437-440
Number of pages4
ISBN (Electronic)9781509034413
DOIs
StatePublished - Jul 2 2016
Event2016 IEEE National Aerospace and Electronics Conference and Ohio Innovation Summit, NAECON-OIS 2016 - Dayton, United States
Duration: Jul 26 2016Jul 29 2016

Publication series

NameProceedings of the IEEE National Aerospace Electronics Conference, NAECON
Volume0
ISSN (Print)0547-3578
ISSN (Electronic)2379-2027

Conference

Conference2016 IEEE National Aerospace and Electronics Conference and Ohio Innovation Summit, NAECON-OIS 2016
Country/TerritoryUnited States
CityDayton
Period7/26/167/29/16

ASJC Scopus Subject Areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Keywords

  • Cross-calibration
  • detector
  • pyroelectric
  • waveguide
  • Calibration
  • Detectors
  • Electron tubes
  • Optical wave guides

Disciplines

  • Physics

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