期刊
JOURNAL OF APPLIED PHYSICS
卷 112, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4733565
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资金
- NSFC [51025208]
Resonances of the high impedance surface (HIS) absorber with periodic trapezoid-coupling pattern were studied. The theoretical, numerical, and experimental study showed that a frequency dispersion of the equivalent resistance could break the single resonance limitation. The limitation is induced by the non-dispersive feature of the equivalent resistance in simple patterned HIS absorber. Therefore, multi-resonances originated from the trapezoid-coupling pattern effectively expanded the absorption bandwidth. The proposed absorber had a thickness reduced by 41% and a -15dB absorption bandwidth broadened by 50% compared with Salisbury screen. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4733565]
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