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Magnetic loading of EBG AMC ground planes and ultrathin absorbers for improved bandwidth performance and reduced size
Author(s) -
Kern D. J.,
Werner D. H.
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21972
Subject(s) - conductor , bandwidth (computing) , microwave , materials science , electrical conductor , dielectric , optoelectronics , tunable metamaterials , fractional bandwidth , permeability (electromagnetism) , metamaterial , optics , engineering , physics , composite material , telecommunications , chemistry , resonator , biochemistry , membrane
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. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2468–2471, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21972