Analysis of single band and dual band graphene based patch antenna for terahertz region

Nissiyah, G. Jemima; Madhan, M. Ganesh

doi:10.1016/j.physe.2017.08.001

Cited by 63 publications

(15 citation statements)

References 17 publications

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“…In addition to the structure of the antenna itself, which affects the performance of the detector, the height of the substrate also affects the effectiveness of the antenna, thus, the performance of the detector. The height of the substrate has an effect on the absorption cross section, and the maximum value of the absorption cross section needs to be obtained by varying the substrate height of the fractal butterfly antenna [29]. After determining the optimal substrate height, each size variable of the fractal butterfly antenna was optimized to obtain the final antenna size as shown in Table 2.…”

Section: Figure 4 Return Loss Of 3 Pairs Fractal Unit and 4 Pairs Fractal Unit Antennasmentioning

confidence: 99%

“…In order to study the effect of material properties on antenna performance, two different materials, gold and graphene, are used to simulate the proposed fractal butterfly antenna. And the performance of our fractal butterfly antenna which using graphene material is also compared with other two antennas which proposed in reference [29] and [37]. The comparison results are shown in Table 4, where gold and graphene 1 are the simulated results of the fractal butterfly antenna, and graphene 2 and 3 are the antenna performance parameters of references [29] and [37].…”

Section: Data Comparison and Analysismentioning

confidence: 99%

“…And the performance of our fractal butterfly antenna which using graphene material is also compared with other two antennas which proposed in reference [29] and [37]. The comparison results are shown in Table 4, where gold and graphene 1 are the simulated results of the fractal butterfly antenna, and graphene 2 and 3 are the antenna performance parameters of references [29] and [37]. Figure 9 shows the simulated results (Gain, VSWR, S(p1,p1)) of the fractal butterfly antenna using gold and graphene as materials, respectively.…”

Section: Data Comparison and Analysismentioning

confidence: 99%

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Design of Terahertz Detection Antenna With Fractal Butterfly Structure

et al. 2021

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Terahertz (THz) technology can be widely used in radar, remote sensing, homeland security and counter-terrorism, high-secret data communication and transmission, atmospheric and environmental monitoring, real-time biological information extraction, and medical diagnosis. It is the frontier of current research. However, most of highly sensitive THz detectors work in a relatively narrow frequency range. It attracts great attention to design a high-gain terahertz antenna operates in a wide spectrum range. In this paper we propose a new structure of fractal butterfly antenna with high gain which can be used for broadband THz detection. This fractal butterfly antenna is constructed by independent fractal unit groups on butterfly antenna, which simplifies the antenna manufacturing process and reduces the manufacturing cost. The antenna can operate in the 0.1-10 THz frequency band, with impedance bandwidth of 85% resonated at 4.9 THz, return loss of as small as -33.59 dB, and maximum gain of 16.95 dB. Among the antenna with 3 to 4 fractal unit groups, the best operation band of the antenna is 6.2-6.4 THz. The proposed fractal butterfly antenna can effectively improve the performance of terahertz detectors, and provide the possibility for detection research in higher frequency bands.

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Section: Figure 4 Return Loss Of 3 Pairs Fractal Unit and 4 Pairs Fractal Unit Antennasmentioning

confidence: 99%

Section: Data Comparison and Analysismentioning

confidence: 99%

Section: Data Comparison and Analysismentioning

confidence: 99%

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Design of Terahertz Detection Antenna With Fractal Butterfly Structure

et al. 2021

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“…Recently, there have been a number of investigations of resonant frequencies of GRMPAs. These investigations are based on CST and HFSS computer aided design tools for determining the tunable frequencies [20][21][22][23][24][25]. However, the accuracy of these approximate models is limited and only suitable for analyzing simple, regularly shaped antenna or thin substrates.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Resonant Characteristics of Graphene Rectangular Microstrip Patch Antenna With Roof Top Functions

Chettah¹,

Barkat²

2022

PIER C

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In this paper, an analytical model is presented to investigate the resonant characteristics of a graphene rectangular microstrip patch antenna. To take into account the graphene film patch in the full-wave spectral domain technique, surface complex impedance is considered. This impedance is determined by using Kubo formula. A set of roof top sub-domain basis functions are employed to model the current density distribution on the graphene rectangular microstrip patch. The simulation results demonstrate that the designed structure can provide excellent tunable properties in Terahertz frequency region by varying different chemical potentials and relaxation times of graphene film. Variations of dimension of rectangular patch on the resonant frequency and bandwidth of a graphene rectangular microstrip antenna are presented. Finally, numerical results for the dielectric substrates effects on the operating frequencies are also presented. The analysis is validated by comparing the results with a specific example in the literature.

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“…Most of the graphene-based THz antennas in the existing literatures [41][42][43][44][45][46][47][48][49] have some downsides: limited BW, gain and directivity. In [45], a graphene based miniaturized THz patch antenna operating in 5.39-5.61 THz resonant frequency range is proposed with a low BW of 218 GHz and a limited gain of 3.9 dB, still it has a relatively high directivity of 5.429 dBi.…”

Section: Introductionmentioning

confidence: 99%

Highly Directive Graphene Based Hybrid Plasmonic Nanoantenna for Terahertz Applications

BISWAS¹,

Arifin²

2022

AJSE

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To satisfy the necessity for elevated data transmission rates in 5G and beyond networks, terahertz band communication (0.1 - 10 THz) is envisaged as a crucial wireless technology. Two-dimensional graphene nanomaterial is being extensively integrated into the plasmonic antennas as it allows them to resonate in the terahertz wave spectrum. In this paper, a graphene-based hybrid terahertz plasmonic nano-scale antenna has been modelled to acquire a maximum gain and directivity of 8.1 dB and 8.23 dBi, respectively, by varying the conductivity of graphene via gate bias voltage. Moreover, a combination of several tailored radiating layers of silver, SiO2 and graphene sheets is arranged in the proposed nanoantenna in such a way that the return loss (S11) of -26.595 dB and a wider bandwidth of 1241.3 GHz are obtained. It is evident that the proposed graphene-based hybrid plasmonic nanoantenna could be considered as an ideal candidate for terahertz communication owing to its excellent radiation characteristics.

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Analysis of single band and dual band graphene based patch antenna for terahertz region

Cited by 63 publications

References 17 publications

Design of Terahertz Detection Antenna With Fractal Butterfly Structure

Design of Terahertz Detection Antenna With Fractal Butterfly Structure

Numerical Analysis of Resonant Characteristics of Graphene Rectangular Microstrip Patch Antenna With Roof Top Functions

Highly Directive Graphene Based Hybrid Plasmonic Nanoantenna for Terahertz Applications

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