LOW-FREQUENCY SHIELDING EFFECTIVENESS OF CONDUCTIVE GLASS

Abstract

The shielding effectiveness of conductive glass at low and intermediate frequencies (100 kc 00 mc) was investigated. A mathematical model was used to describe the absorption and reflection. This model is based on a film applied to the glass substrate which represents a barrier with finite thickness and relative conductivity. Experimental data agreed well with theoretical calculations. Coated glass exhibits a permeability similar to that of free space, so that low-impedance attenuation is limited to the conductivity of the film. The analysis is primarily concerned with high-impedance, near-field incident waves. Transmission in the visible spectrum was also determined for several 4- by 4-inch conductive glass samples which vary in surface resistance from 9 to 125 ohms/square. Larger samples (8 by 3 feet) of conductive glass were also investigated.

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Document Details

Document Type
Technical Report
Publication Date
May 20, 1963
Accession Number
AD0410564

Entities

People

  • H. A. Lasitter

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Attenuation
  • Boundaries
  • Coordinate Systems
  • Detectors
  • Electric Fields
  • Electromagnetic Interference
  • Engineering
  • Engineers
  • Equations
  • Experimental Data
  • Far Field
  • Light Transmission
  • Materials
  • Near Field
  • Visible Spectra
  • Wave Propagation

Fields of Study

  • Materials science

Readers

  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Spectroscopy.
  • Thin Film Deposition Science.

Technology Areas

  • Space