A Graphene-Assembled Film Based MIMO Antenna Array with High Isolation for 5G Wireless Communication

Song, Rongguo; Chen, Xiaoxiao; Jiang, Shaoqiu; Hu, Zelong; Liu, Tianye; Calatayud, David G.; Mao, Boyang; He, Daping

doi:10.3390/app11052382

Cited by 19 publications

(10 citation statements)

References 34 publications

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“…A single layer of graphene was extracted from the bulk graphite crystal structure using a mechanical exfoliation approach. Chemical vapor deposition (CVD), thermal exfoliation, and carbon segregation [27] are other preparation methods for the graphene layers. At the THz frequency band, this exceptional material exhibits excellent mobility, transparency, flexibility, and environmental stability.…”

Section: Graphene's Conductivity and Dispersion Relationmentioning

confidence: 99%

“…Graphene, as a carbon-based material, has been prepared with different tech A single layer of graphene was extracted from the bulk graphite crystal structure mechanical exfoliation approach. Chemical vapor deposition (CVD), thermal exfo and carbon segregation [27] are other preparation methods for the graphene layer THz frequency band, this exceptional material exhibits excellent mobility, transp flexibility, and environmental stability. As a result, it is the best choice that can be antenna applications.…”

Section: Graphene Patch Antenna Design 21 Graphene's Conductivity And...mentioning

confidence: 99%

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MTM-Inspired Graphene-Based THz MIMO Antenna Configurations Using Characteristic Mode Analysis for 6G/IoT Applications

et al. 2022

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6G wireless communications will be immersed in the future with different applications. It is expected to support all IoT services and satellite communications, and it is expected to support artificial intelligence (AI) and machine learning (ML). The THz frequency band has a vital role in 6G communication. In this study, a new graphene plasmonic two-port Terahertz (THz) MIMO antenna is analyzed by the characteristic mode theory (CMA), which gives a better insight into the physical behavior of the MIMO configurations. The proposed MIMO antenna is compact and designed on a Teflon substrate of 130 × 85 µm2. The antenna provides a wide impedance bandwidth of 0.6 THz (3.2–3.8 THz). The CMA is applied to clarify the position at which the mutual coupling gives a maximum concentrated current distribution. It is mainly used to reveal the preferable MIMO antenna configuration by the usage of the model significant and model current distribution property. To reduce the mutual coupling between the radiating elements, a complementary dumbbell-structure Metamaterial (MTM) unit cell is etched in the ground plane to block the coupling mode without any affection on the dominant mode. The preferred MIMO configuration gives high isolation of −55 dB between the radiating patches. The fundamental characteristics have been discussed in detail. The proposed MIMO design offers several attractive features such as large bandwidth of 0.6 THz, low envelope correlation coefficient (ECC) of 0.000168, compact size, stable radiation, high gain of 7.23 dB, and low channel capacity loss (CCL) of 0.006. The proposed MIMO design is suitable for different applications in the THz band according to the high-performance parameters such as biomedical applications, security scanning, sensing, IoT, and 6G high-speed wireless communication systems.

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Section: Graphene's Conductivity and Dispersion Relationmentioning

confidence: 99%

Section: Graphene Patch Antenna Design 21 Graphene's Conductivity And...mentioning

confidence: 99%

MTM-Inspired Graphene-Based THz MIMO Antenna Configurations Using Characteristic Mode Analysis for 6G/IoT Applications

et al. 2022

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“…In addition to complete electromagnetic shielding, selective shielding of the electromagnetic eld is also important in many cases to ensure the normal transmission of other frequency bands. As a member of metamaterials, frequency selective surface (FSS) is formed by periodic arrangement of structural units, which can selectively absorb, re ect and transmit electromagnetic waves 49 , and thus is an effective way to realize frequency selection. To further explore the electromagnetic protection performance of GAF, we developed two transparent, exible FSS that work in Sub-6 GHz and millimeter wave bands, respectively.…”

Section: Gaf Applied In Fss At Sub-6 Ghz and Millimeter Wave Frequenciesmentioning

confidence: 99%

Anticorrosive Multi-band 5G Wireless Communication and THz Electromagnetic-Interference Shielding with Graphene Assembled Film

Song¹,

Mao²,

Wang³

et al. 2021

Preprint

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Since first developed, the conducting materials in wireless communication and electromagnetic interference (EMI) shielding devices have been primarily made of metal-based structures. Here, we present a highly conductive and corrosion-resistant graphene assembled film (GAF) that can be used to fabricate multi-band 5G wireless communication electronics and EMI protection at frequencies ranging from tens of MHz to THz to demonstrate its potential in metal replacement in practical electronics. The GAF based antennas (dipole antenna, ultra-wideband antenna and 5G wireless communication antenna array) are comparable with metal-based antennas in terms of performance and device complexity. The EMI shielding effectiveness of GAF can reach up to 127 dB in the frequency range of 2.6 GHz - 0.32 THz, and a maximum shielding effectiveness per unit thickness is of 6966 dB/mm. Furthermore, the GAF metamaterials exhibit promising frequency selection characteristics and angular stability as flexible frequency selective surfaces that can work at 3.5 GHz and 60 GHz respectively.

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“…Graphene has greater environmental affinity and chemical stability than traditional metals. Graphene is ideally suited for use as a substitute for metal in the potential applications of future wireless communication systems, including antennas and attenuators [4]. The graphene plasmonic characteristic can make antennas and other devices smaller.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable graphene-based multi-input multi-output antenna design for THz applications

Hikmat

Abdulnabi

2023

Bulletin EEI

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This paper presents a compact graphene-based multi-input multi-output (MIMO) antenna for wireless communications operating in frequency band (0.1-10) THz. This work has been performed with four ports microstrip antennas based on 37×88 μm² a silicon dioxide (Sio₂) substrate and copper on the ground layer, with high isolation by a series of unit cells of graphene selected between adjacent patches to reduce the transmission coefficient and antenna size. Graphene's chemical potential will change by changing the connected DC voltage, leading to bandwidth and resonant frequency variation. The simulation has a reflection coefficient is less than -10 dB at (4.5-10) THz of the frequency scale, mutual coupling (-15 dB), and the gain from (4.7-9) THz is (1.6-6.7254) dB. This paper aims to provide wideband, efficient and reconfigurable with simple graphene-based MIMO antenna for THz applications.

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A Graphene-Assembled Film Based MIMO Antenna Array with High Isolation for 5G Wireless Communication

Cited by 19 publications

References 34 publications

MTM-Inspired Graphene-Based THz MIMO Antenna Configurations Using Characteristic Mode Analysis for 6G/IoT Applications

MTM-Inspired Graphene-Based THz MIMO Antenna Configurations Using Characteristic Mode Analysis for 6G/IoT Applications

Anticorrosive Multi-band 5G Wireless Communication and THz Electromagnetic-Interference Shielding with Graphene Assembled Film

Reconfigurable graphene-based multi-input multi-output antenna design for THz applications

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