A genetic algorithm approach to the design of ultra-thin electromagnetic bandgap absorbers

D. J. Kern, D. H. Werner

Research output: Contribution to journalArticle

172 Scopus citations

Abstract

A design methodology is presented for utilizing electromagnetic bandgap metamaterials, also known as artificial magnetic conductors, to realize ultra-thin absorbers. One approach that has recently been proposed is to place a resistive sheet in close proximity to a frequency-selective surface acting as an artificial magnetic conductor. However, we demonstrate in this paper that incorporating the loss directly into the frequency selective-surface can eliminate the additional resistive sheet, thereby further reducing the overall thickness of the absorber. The geometrical structure and corresponding resistance of this lossy frequency-selective surface is optimized by using a genetic algorithm to achieve the thinnest possible absorber. Two examples of genetically engineered electromagnetic bandgap metamaterial absorbers are presented and discussed.

Original languageEnglish (US)
Pages (from-to)61-64
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume38
Issue number1
DOIs
StatePublished - Jul 5 2003

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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