Design and analysis of a super wideband (0.09<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si0004.svg"><mml:mo linebreak="badbreak">−</mml:mo></mml:math>30.14 THz) graphene based log periodic dipole array antenna for terahertz applications

Krishna, Ch Murali; Das, Sudipta; Lakrit, Soufian; Lavadiya, Sunil; Madhav, B. T. P.; Sorathiya, Vishal

doi:10.1016/j.ijleo.2021.167991

Cited by 27 publications

(8 citation statements)

References 17 publications

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“…The prsented design selection is based on the number of bands, resonating behaviour, bandwidth, gain, ease of design and fabrication. The substrate material is Roger RT duroid 5880 [14]. The height of the substrate is chosen as 1.6mm.…”

Section: Design Of Proposed Structurementioning

confidence: 99%

“…Researchers have developed different types of UWB MIMO antennas. Like Novel stub structure for UWB-MIMO applications [3], [5]- [7], Dual polarization-based UWB-MIMO Antenna [8], [9], Miniaturized MIMO UWB Antenna With more Isolation for applications of multiple Band [10], UWB MIMO for the mutual coupling reduction for Wideband Neutralization Line MIMO UWB antennas [11], Mutual Coupling Reduction for Wideband Neutralization Line UWB MIMO Antennas [2], Antenna for UWB with Compact MIMO Slot [12]- [14], Enhancement of Isolation by the Compact UWB MIMO Antenna and Reflector [15], MIMO antenna array antenna [16], [17]. There are, however, important challenges that must be solved to improve MIMO's efficacy.…”

Section: Introductionmentioning

confidence: 99%

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1x2 printed element based MIMO antenna with UWB and multiband response for airborne and naval radar communication

Lavadiya

Sorathiya²,

Patel

2023

Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVI

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We have proposed a multiband operated superlative MIMO antenna structure. The simple T-shaped resonator-based design is numerically investigated for the 4 GHz to 20 GHz frequency range. The performance of the design is done in terms of reflectance coefficient, transmission coefficient, radiation pattern, gain, and electric field. The design provides the four-band behaviour. The results represent a minimum S11 of -27.27 dB, a peak gain of 9.66 dB, an E-field of 20041 v/m, and broad directivity. The design is fabricated using the Roger RT Duroid 5880. The presented structure's performance also examines ECC, TARC, DG, and CCL. The reliability of the design is checked by comparison among simulated and measured results. The design helps the airborne, Naval radar and many wireless communication applications.

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Section: Design Of Proposed Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

1x2 printed element based MIMO antenna with UWB and multiband response for airborne and naval radar communication

Lavadiya

Sorathiya²,

Patel

2023

Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVI

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“…Antennas are always an essential part of any wireless communication device. More than a few numbers of antenna structures have been studied to suit wireless communication at terahertz bands [5,8,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Among the antenna structures explored, microstrip patch antenna (MPA) was found to be very appropriate candidates compared to other structures with complex or three-dimensional structures.…”

Section: Introductionmentioning

confidence: 99%

Multi-Band Metamaterial Antenna for Terahertz Applications

Ashyap¹,

Inam²,

Kamarudin³

et al. 2023

Computers, Materials &Amp; Continua

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A multi-band metamaterial antenna is proposed to operate at the terahertz (THz) band for medical applications. The proposed structure is designed on a polyimide as a support layer, and its radiating elements are made of graphene. Initially, the design is started with a conventional shape showing a single operating frequency at 1.1 THz. To achieve a multi-band operating frequency, the conventional shape was replaced with the proposed metamaterial as a radiating patch that has properties not exist in nature. The multi-band frequencies are obtained without compromising the overall size of the design. The overall size is 600 × 600 × 25 μm 3 . The operating frequencies are 0.36, 0.49, 0.69, 0.87, and 1.04 THz. A full ground plane is used to behave as isolation between the design and the human body model. The proposed design is investigated on free space and on the human body model, showing excellent performance in both cases. The achieved gains for the following frequencies 0.36, 0.49, 0.69, 0.87, and 1.04 THz are 4.81, 6.5, 8.41, 6.02,and 7.96 dB, respectively, while the efficiencies are 83.91%, 96.28%, 90.80%, 91.71%, and 92.99%, respectively. The conventional design was modified to have a partial ground to show the benefit of using the full ground. The design is loaded on the human body model and its performance is affected. The efficiency and gain are 6.61 dB and 95.58.7% for the case of no human body model, and 4.26 dB and 40.30% for the case of using a human body model. Hence, the proposed metamaterial antenna will be useful for future medical applications in the THz band.

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“…These new challenges and opportunities undoubtedly contribute to antenna technology's expansion. There are many different antenna designs, such as metallic [6], horn [7], lens [8], metamaterial [9][10][11], on-chip [12], dielectric [13,14], and leaky-wave antenna [15,16], photoconductive [17], yagi antenna [18], log periodic antenna [19], cuboidal [20], and slotted antenna [21], that were described in literature. For these antennas to perform their intended role, they must have a bigger physical footprint and a more involved design process.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Investigation of Graphene-Based Hilbert-Shaped Multi-Band MIMO Antenna for the Terahertz Spectrum Applications

Aliqab

Alsharari

Sorathiya

et al. 2022

Sensors

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We proposed the numerical investigation of Hilbert-shaped multiple-input multi-output (MIMO) with multi-band operation characteristics using graphene resonator material, which operates on the band of 1 to 30 THz of the frequency range. This numerical investigation of antenna structure was carried out for the multiple antenna types, consisting of graphene as a regular patch, Hilbert order 1, and Hilbert order 2 designs. This antenna is investigated for the multiple physical parameters, such as return loss, gain, bandwidth, radiation response, Envelope Correlation Coefficient (ECC), Total Active Reflection Coefficient (TARC), Mean Effective Gain (MEG), Directivity Gain (DG), and Channel Capacity Loss (CCL). These variables are also determined to verify compatibility and the difficulties connected with communicating over a short distance. The THz MIMO antenna that was recommended offers strong isolation values in addition to an operational band. The maximum gain of ~10 dBi for the band of <15 THz and ~17 dBi for the band of the >15 THz frequency range of the proposed antenna structures. The proposed antennas are primarily operated in three bands over 1 to 30 THz of frequency. This work aims to create a brand new terahertz antenna structure capable of providing an extraordinarily wider bandwidth and high gain while keeping a typical compact antenna size suited for terahertz applications.

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Design and analysis of a super wideband (0.09−30.14 THz) graphene based log periodic dipole array antenna for terahertz applications

Cited by 27 publications

References 17 publications

1x2 printed element based MIMO antenna with UWB and multiband response for airborne and naval radar communication

1x2 printed element based MIMO antenna with UWB and multiband response for airborne and naval radar communication

Multi-Band Metamaterial Antenna for Terahertz Applications

A Numerical Investigation of Graphene-Based Hilbert-Shaped Multi-Band MIMO Antenna for the Terahertz Spectrum Applications

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