Parametric Experimental Study of Microwave Absorption in Chiral Composites

Abstract

Theoretical and experimental studies have shown that chiral composites constructed by embedding chiral inclusions in an otherwise achiral lossy medium enhance power absorption in the microwave frequency range. Chiral composites can hence be used as microwave absorbers to achieve rapid heating during microwave processing of ceramics, glass, and composites. Power absorption bands of chiral composites are discussed and the corresponding ratio of the one turn length of the chiral inclusion to the wavelength in the medium L/Lambda c are reported. This ratio can be used to optimize absorption at different operating frequencies. Experimental studies on chiral composites having different sizes of chiral inclusions are also included.

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Document Details

Document Type
Technical Report
Publication Date
Apr 27, 1992
Accession Number
ADP007767

Entities

People

  • Ruyen Ro
  • Vasundara V. Varadan
  • Vijay K. Varadan

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Acoustic Materials
  • Bandwidth
  • Coefficients
  • Composite Materials
  • Electromagnetic Properties
  • Frequency
  • Inclusions
  • Materials
  • Materials Processing
  • Materials Science
  • Measurement
  • Microwaves
  • Peak Values
  • Reflection

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Organic Chemistry
  • Reinforced Composite Materials