2012
DOI: 10.2528/pier12070612
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Increasing the Nri Bandwidth of Dielectric Sphere-Based Metamaterials by Coating

Abstract: Abstract-A new metamaterial topology is proposed, based on dielectric coated spheres. The effect of the coating is an increased negative permittivity and permeability bandwidth compared with the non-coated spheres. The influence of the dimensional parameters is analyzed, and the relation of each of them with the bandwidth is studied. The theoretical results are confirmed by full wave simulations using CST. A combination of the new topology with wires is used to reach an NRI bandwidth of about 23%. To the knowl… Show more

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Cited by 13 publications
(9 citation statements)
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“…So the skin depth δ of conductive thin film is an important parameter in modeling sheet resistance and shielding effectiveness. The skin depth δ of a continuous conductive film is [12][13][14] …”
Section: Frequency Dependent Model Of Sheet Resistance Of Mesh Coatingmentioning
confidence: 99%
“…So the skin depth δ of conductive thin film is an important parameter in modeling sheet resistance and shielding effectiveness. The skin depth δ of a continuous conductive film is [12][13][14] …”
Section: Frequency Dependent Model Of Sheet Resistance Of Mesh Coatingmentioning
confidence: 99%
“…They cannot be brought into congruence with its mirror image unless they are lifted off the substrate. So, these issues are potentially useful to manipulate the polarization states of EM waves [14][15][16][17][18][19][20][21][22][23].…”
Section: Introductionmentioning
confidence: 99%
“…Some basic meta-atoms are the split ring resonator (SRR), 1,2) the U shape resonator, 3,4) the spiral roll, 2,5) the dielectric sphere, 6,7) etc. They have attracted a lot of attention in the last decade.…”
mentioning
confidence: 99%