Graphene-based wide band semi-flexible array antenna with parasitic patch for smart wireless devices

Vashi, Ronak; Upadhyaya, Trushit; Desai, Arpan

doi:10.1017/s1759078721000179

Cited by 9 publications

(4 citation statements)

References 30 publications

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“…Another slot-based array is proposed in [ 64 ], where the antenna array consists of a slot incorporated in the radiating patch and a parasitic patch towards the center that provides proper isolation. The array consists of graphene and semi-flexible epoxy fiber as the radiating patch and substrate, respectively.…”

Section: Flexible Antennas For a Sub-6 Ghz 5g Bandmentioning

confidence: 99%

Flexible Antennas for a Sub-6 GHz 5G Band: A Comprehensive Review

John

Vincent

Pathan

et al. 2022

Sensors

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The ever-increasing demand and need for high-speed communication have generated intensive research in the field of fifth-generation (5G) technology. Sub-6 GHz 5G mid-band spectrum is the focus of the researchers due to its meritorious ease of deployment in the current scenario with the already existing infrastructure of the 4G-LTE system. The 5G technology finds applications in enormous fields that require high data rates, low latency, and stable radiation patterns. One of the major sectors that benefit from the outbreak of 5G is the field of flexible electronics. Devices that are compact need an antenna to be flexible, lightweight, conformal, and still have excellent performance characteristics. Flexible antennas used in wireless body area networks (WBANs) need to be highly conformal to be bent according to the different curvatures of the human body at different body parts. The specific absorption rate (SAR) must be at a permissible level for such an antenna to be suited for WBAN applications. This paper gives a comprehensive review of the current state of the art flexible antennas in a sub-6 GHz 5G band. Furthermore, this paper gives a key insight into the materials for a flexible antenna, the parameters considered for the design of a flexible antenna for 5G, the challenges for the design, and the implementation of a flexible antenna for 5G.

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Section: Flexible Antennas For a Sub-6 Ghz 5g Bandmentioning

confidence: 99%

Flexible Antennas for a Sub-6 GHz 5G Band: A Comprehensive Review

John

Vincent

Pathan

et al. 2022

Sensors

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show abstract

“…A transparent flexible co-planar waveguide fed patch antenna, using polyethylene terephthalate substrate, was presented in [23]. A semi-flexible 2 × 1 array antenna was proposed using epoxy-glass fiber and graphene as the patch and ground, respectively, in [24]. A microstrip patch antenna with a center parasitic patch of a half wavelength, and a slot in the radiating patch have been incorporated for the bandwidth enhancement in the order of 79.56% (2.21-5.13 GHz).…”

Section: Introductionmentioning

confidence: 99%

Low-Loss Paper-Substrate Triple-Band-Frequency Reconfigurable Microstrip Antenna for Sub-7 GHz Applications

Singh,

Mahto,

Sinha

et al. 2023

Sensors

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In this paper, a low-cost resin-coated commercial-photo-paper substrate is used to design a printed reconfigurable multiband antenna. The two PIN diodes are used mainly to redistribute the surface current that provides reconfigurable properties to the proposed antenna. The antenna size of 40 mm × 40 mm × 0.44 mm with a partial ground, covers wireless and mobile bands ranging from 1.91 GHz to 6.75 GHz. The parametric analysis is performed to achieve optimized design parameters of the antenna. The U-shaped and C-shaped emitters are meant to function at 2.4 GHz and 5.9 GHz, respectively, while the primary emitter is designed to operate at 3.5 GHz. The proposed antenna achieved peak gain and radiation efficiency of 3.4 dBi and 90%, respectively. Simulated and measured results of the reflection coefficient, radiation pattern, gain, and efficiency show that the antenna design is in favorable agreement. Since the proposed antenna achieved wideband (1.91–6.75 GHz) using PIN diode configuration, using this technique the need for numerous electronic components to provide multiband frequency is avoided.

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“…Let us quote the example of transfer of the data between the microprocessor and the memory in the smartphones or in the computers. They could still be used as communication devices with wireless nano-sensors, as in the case of RFID systems [16][17][18][19]. Recently, there have been a number of investigations of resonant frequencies of GRMPAs.…”

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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Graphene-based wide band semi-flexible array antenna with parasitic patch for smart wireless devices

Cited by 9 publications

References 30 publications

Flexible Antennas for a Sub-6 GHz 5G Band: A Comprehensive Review

Flexible Antennas for a Sub-6 GHz 5G Band: A Comprehensive Review

Low-Loss Paper-Substrate Triple-Band-Frequency Reconfigurable Microstrip Antenna for Sub-7 GHz Applications

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

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