Microwave Properties of Germanium and Silicon Windows

Abstract

Theoretical Analysis and on-the-bench tests were performed to determine the required doping levels for germanium and silicon to produce infrared windows with large attentuations to microwave energy in the 1 to 10 GHz range. An optimum doping level was determined where infrared signals were attenuated by only 3% above that for a higher purity sample, while microwave signals were attenuated by over 100 dB with over 60% of this attenuation resulting from reflections on the window surface and not absorption within the doped window. Results, conclusions and potentialites are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1972
Accession Number
AD0753466

Entities

People

  • Robert W. Lothrop

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Band Gaps
  • Conduction Bands
  • Electrons
  • Energy Bands
  • Energy Gaps
  • Equations
  • Frequency
  • Impedance
  • Materials
  • Microwaves
  • Radio Frequency
  • Reflection
  • Refraction
  • Refractive Index
  • Semiconductors
  • Thickness

Readers

  • Acoustics.
  • Semiconductor Device Technology
  • Solar Photovoltaics and Thermoelectric Devices.