Terahertz Graphene Based Metamaterial Transmitarray

被引：0
作者：
Saber Helmy Zainud-Deen
Ahmed M. Mabrouk
Hend Abd El-Azem Malhat
机构：
[1] Menoufia University,Faculty of Electronic Engineering
[2] Badr University,Faculty of Engineering and Technology
来源：
Wireless Personal Communications | 2018年 / 100卷
关键词：
Graphene; Metamaterial; Transmitarray;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper introduces a graphene metamaterial (GMM) transmitarray designed for terahertz applications. The unit-cell element is a multilayered metamaterial structure of a graphene split ring resonator with two variable gaps. The metamaterial properties of the unit-cell element are investigated from 0.74 to 0.94 THz for different conductivities of the graphene material. A parametric study of the transmission properties of the metamaterial unit-cell element is investigated. The radiation characteristics of 169 unit-cell elements of the three layers GMM transmitarrays are analyzed for different applied DC voltages. The gain and side-lobe level of the proposed transmitarray are improved by using an averaging process on the transmission phase used for array construction. The transmitarray introduces a high gain of about 18.5 dB at frequencies 0.83, 0.85 and 0.88 THz for chemical potentials μc = 0.4, 0.5 and 0.8 eV, respectively. A full wave simulation is used to design and analyze the radiation characteristics of the graphene based metamaterial transmitarray.
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页码：1235 / 1248
页数：13
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  • [1] Zhang XC(2002)Terahertz wave imaging: Horizons and hurdles Physics in Medicine & Biology 47 3667-2554
  • [2] Kawase K(2003)Non-destructive terahertz imaging of illicit drugs using spectral fingerprints Optics Express 11 2549-3478
  • [3] Ogawa Y(2008)Highly flexible wide angle of incidence terahertz metamaterial absorber: Design, fabrication, and characterization Physical Review B 78 241103-757
  • [4] Watanabe Y(2011)Polarization insensitive, broadband terahertz metamaterial absorber Optics Letters 36 3476-678
  • [5] Inoueet H(2015)A novel dual-band terahertz metamaterial absorber for a sensor application Journal of Applied Physics 117 014504-1867
  • [6] Tao H(2009)Analogue of electromagnetically induced transparency in a terahertz metamaterial Physical Review B 80 153103-45
  • [7] Bingham CM(2008)Dyadic green’s functions for an anisotropic, non-local model of biased graphene IEEE Transactions on Antennas and Propagation 56 747-191
  • [8] Strikwerda AC(2012)Terahertz graphene optics Nano Research Journal 5 667-undefined
  • [9] Pilon D(2012)Analysis and design of terahertz antennas based on plasmonic resonant graphene sheets Journal of Applied Physics 112 114915-undefined
  • [10] Shrekenhamer D(2015)Equivalent circuit with frequency independent lumped elements for plasmonic graphene patch antenna using particle swarm optimization technique Wireless Personal Communications 85 1851-undefined
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