Low Frequency Behavior of CVD Graphene From Dc to 40 GHZ

Wang, Rong; Raju, Salahuddin Viswanadha; Chan, Mansun; Jiang, Lijun

doi:10.2528/pierc16111901

Cited by 10 publications

(9 citation statements)

References 18 publications

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“…A graphene-integrated circuit is ready for manufacture after the successful transfer process. Here, we take the graphene-embedded coplanar waveguide as an example and introduce the fabrication technologies utilized for electrodes deposition and graphene patterning [38]. As shown in Fig.…”

Section: Fabrication and Microwave Devicesmentioning

confidence: 99%

Graphene based functional devices: A short review

et al. 2018

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Graphene is an ideal 2D material system bridging electronic and photonic devices. It also breaks the fundamental speed and size limits by electronics and photonics, respectively. Graphene offers multiple functions of signal transmission, emission, modulation, and detection in a broad band, high speed, compact size, and low loss. Here, we will have a brief view of graphene based functional devices at microwave, terahertz, and optical frequencies. Their fundamental physics and computational models will be discussed as well.

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Section: Fabrication and Microwave Devicesmentioning

confidence: 99%

Graphene based functional devices: A short review

et al. 2018

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“…These relations indicate that the graphene mobility or conductivity can be controlled using an external bias voltage V DC which can change the conductivity of the graphene flake. Many research works have been published in the past for Graphene applications within the THz frequency region [19] - [21] and few works have been presented in GHz region [22] - [24]. The work in this paper presents an application of graphene patch within GHz range and its comparison to the copper conductor for an antenna patch behavior.…”

Section: Fig 3 Fermi Energy Dispersion Diagrammentioning

confidence: 99%

Graphene Logo Patch Antenna

Kumar

2018

IRECAP

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Graphene with its unique electrical, mechanical and physical properties provides a platform for novel electronic systems design. A compact patch Logo antenna based on doped Graphene has been proposed for its operation within GHz range. The antenna parameters such as S11 parameter, Bandwidth, Gain, Directivity and Efficiency has been obtained and compared with results obtained from a copper conductive patch antenna. The designed antenna has an elliptical shape with a dimension of 25 X 16 mm. It has been designed over 1.6 mm thick polyimide substrate to provide the flexibility required for applications ranging from wearable to medical electronics. Various parametric plots for Graphene such as dispersion diagram, conductivity as a function of its DC bias, surface impedance and comparison of skin depth with copper conductive media have been obtained for its inclusion in 3D field solver tool. Finally a spice circuit has been obtained for the S11 parameter of the graphene and copper conductive patch antenna for its 3D field solver equivalence.

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“…The most critical part is the transfer of graphene to the target substrate and ensuring that the graphene is not damaged, as depicted in Figure 23a. The three most common techniques utilized for transfer process are carrier film, stamp and self-release [331]. The carrier film is discussed here as taking part in four different stages.…”

Section: Synthesis Of Graphene and The Fabrication Of Graphene-metal mentioning

confidence: 99%

A Review on the Development of Tunable Graphene Nanoantennas for Terahertz Optoelectronic and Plasmonic Applications

Ullah

Witjaksono

Nawi

et al. 2020

Sensors

104

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Exceptional advancement has been made in the development of graphene optical nanoantennas. They are incorporated with optoelectronic devices for plasmonics application and have been an active research area across the globe. The interest in graphene plasmonic devices is driven by the different applications they have empowered, such as ultrafast nanodevices, photodetection, energy harvesting, biosensing, biomedical imaging and high-speed terahertz communications. In this article, the aim is to provide a detailed review of the essential explanation behind graphene nanoantennas experimental proofs for the developments of graphene-based plasmonics antennas, achieving enhanced light–matter interaction by exploiting graphene material conductivity and optical properties. First, the fundamental graphene nanoantennas and their tunable resonant behavior over THz frequencies are summarized. Furthermore, incorporating graphene–metal hybrid antennas with optoelectronic devices can prompt the acknowledgment of multi-platforms for photonics. More interestingly, various technical methods are critically studied for frequency tuning and active modulation of optical characteristics, through in situ modulations by applying an external electric field. Second, the various methods for radiation beam scanning and beam reconfigurability are discussed through reflectarray and leaky-wave graphene antennas. In particular, numerous graphene antenna photodetectors and graphene rectennas for energy harvesting are studied by giving a critical evaluation of antenna performances, enhanced photodetection, energy conversion efficiency and the significant problems that remain to be addressed. Finally, the potential developments in the synthesis of graphene material and technological methods involved in the fabrication of graphene–metal nanoantennas are discussed.

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Low Frequency Behavior of CVD Graphene From Dc to 40 GHZ

Cited by 10 publications

References 18 publications

Graphene based functional devices: A short review

Graphene based functional devices: A short review

Graphene Logo Patch Antenna

A Review on the Development of Tunable Graphene Nanoantennas for Terahertz Optoelectronic and Plasmonic Applications

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