Optimal Thickness of Double-Layer Graphene-Polymer Absorber for 5G High-Frequency Bands

被引：2
|
作者：
D'Aloia, Alessandro Giuseppe [1 ,2 ]
D'Amore, Marcello [1 ,2 ]
Sarto, Maria Sabrina [1 ,2 ]
机构：
[1] Sapienza Univ Rome, Dept Astronaut Elect & Energy Engn, I-00184 Rome, Italy
[2] Sapienza Univ Rome, Res Ctr Nanotechnol Appl Engn Sapienza CNIS, Via Eudossiana 18, I-00184 Rome, Italy
来源：
ELECTRONICS | 2023年 / 12卷 / 03期
关键词：
two-layers absorber; graphene-based composite; oblique incidence; 5G absorption performances; SINGLE-LAYER;
D O I：
10.3390/electronics12030588
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new analytical approach to optimize the thicknesses of a two-layer absorbing structure constituted by a graphene-based composite and a polymer dielectric spacer backed by a metallic layer acting as perfect electric conductor (PEC) is proposed. The lossy sheet is made by an epoxy-based vinyl ester resin filled with graphene nanoplatelets (GNPs) characterized by known frequency spectra of the complex permittivity. The optimal thicknesses are computed at the target frequencies of 26, 28, and 39 GHz in order to obtain a -10 dB bandwidth able to cover the 5G frequency bands between 23.8 and 40 GHz. The resulting absorbing structures, having a total thickness lower than 1 mm, are excited by transverse magnetic (TM) or electric (TE) polarized plane waves and the absorption performances are computed in the 5G high frequency range.
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页数：12
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