Journal
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Volume 48, Issue 12, Pages 2468-2471Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/mop.21972
Keywords
electromagnetic bandgap surface; metaferrite; artificial magnetic conductor; frequency selective surface; ultrathin absorber
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This paper demonstrates the advantages of magnetic loading within the substrate of an electromagnetic bandgap (EBG) surface. A conventional EBG surface has been shown to act as an artificial magnetic conductor over a narrow bandwidth. This paper demonstrates that by magnetic loading of the substrate, increased operating bandwidth is achieved for each resonant frequency. In addition, previous research has revealed that an ultrathin electromagnetic absorber design can be obtained by introducing loss into the frequency selective surface of an EBG absorber. It is now shown that a further reduction in thickness is possible by including a small amount of magnetic permeability within the dielectric substrate material. (c) 2006 Wiley Periodicals, Inc.
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