Optimal Thickness of Double-Layer Graphene-Polymer Absorber for 5G High-Frequency Bands-Reference-Cited by-同舟云学术

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

Published:2023-01-24 Issue:3 Volume:12 Page:588
ISSN:2079-9292
Container-title:Electronics
language:en
Short-container-title:Electronics

Author:

D’Aloia Alessandro Giuseppe¹²^ORCID,D’Amore Marcello¹²,Sarto Maria Sabrina¹²^ORCID

Affiliation:

1. Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, 00184 Rome, Italy

2. Research Center on Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy

Abstract

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.

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

Link

https://www.mdpi.com/2079-9292/12/3/588/pdf

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