High Isolation and High Gain Super-Wideband (0.33-10 THz) MIMO Antenna for THz Applications

Saxena, Gaurav; Awasthi, Yogendra Kumar; Jain, Priyanka

doi:10.1016/j.ijleo.2020.165335

Cited by 49 publications

(26 citation statements)

References 14 publications

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“…To achieve more accurate results, value of ECC is calculated by radiating field of proposed antenna in Saxena and Awasthi(2020). Where XPR is cross-polarization ratio of incident wave in propagation environment.…”

Section: Resultsmentioning

confidence: 99%

“…Author in King (2014) explains the usages of MIMO antennas which helps to increase data rate, channel capacity without increasing the antenna's transmitting power and spectrum resources in the THz communication system . To acquire these demands, many researchers (Varshney et al 2019;Luo et al 2019;Babu et al 2022;Okan 2021;Saxena and Awasthi 2020;b;c) have been focused to design MIMO antenna systems for THz applications. To ensure the functioning of MIMO communication system, self-interference between radiating elements must be minimum.…”

Section: Introductionmentioning

confidence: 99%

“…In (Babu et al 2022;Okan 2021), mutual coupling between two radiating elements has been achieved by employing spatial and pattern diversity techniques. Apart from this, numerous two-port MIMO antenna systems with wide spectrum for SWB operation have been designed in (Saxena and Awasthi 2020;b;c). A super wideband MIMO antenna has been designed with impedance bandwidth (0.33-10THz) for high-speed THz applications in Saxena and Awasthi (2020).…”

Section: Introductionmentioning

confidence: 99%

“…Apart from this, numerous two-port MIMO antenna systems with wide spectrum for SWB operation have been designed in (Saxena and Awasthi 2020;b;c). A super wideband MIMO antenna has been designed with impedance bandwidth (0.33-10THz) for high-speed THz applications in Saxena and Awasthi (2020). However, the designed antenna is not compact with low gain as well as radiation efficiency at sub-THz frequencies as compared to higher THz frequencies.…”

Section: Introductionmentioning

confidence: 99%

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Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

2022

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A compact semi-hexagonal-shaped MIMO antenna loaded with a planar SRR (split-ring resonator) structure is presented for Terahertz applications. The single radiating element consists of a semi-hexagonal shape metallic patch loaded with SRR-CC (Split ring Resonator-Connected C shape) metamaterial unit cell to enhance the impedance bandwidth as well as gain of the proposed antenna. The proposed antenna element can be easily extended into two-port and four-port MIMO antenna configurations. Four radiating elements of the proposed antenna are printed on 122.4*122.4 um 2 quartz substrate having a thickness of 10 um. The radiating elements are placed orthogonally to achieve high isolation and miniaturization in the MIMO system. The proposed antenna exhibits super-wide impedance bandwidth (S11≤ -10dB) in the range of 0.9-10.1 THz (with fractional bandwidth of 168% at f0=5.5 THz) while isolation of antenna is more than 20 dB in the whole operating band. The peak gain of the antenna is 7.51dBi with more than 95% radiation efficiency in the entire band. The stable radiation pattern, high gain, high radiation efficiency, and good diversity performance of the proposed antenna make it suitable for many THz applications such as breast cancer detection, sugar measurement, drug detection.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

2022

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“…Also, Figure 6 (d) indicates the material (Copper & FR4) behaviour in the desired frequency band. The single layer absorber can be modelled using Drude's formulation for the metal conductivity as given in (17)[39]: 𝜎(𝜔, 𝜇 _ , 𝜏, 𝑡) = −𝑗 `+a 9 L <b + (c,d"e) Y f 3 a 9 L + 2𝑙𝑛 \𝑒 , : 3; 9 < + 1^_(17)…”

mentioning

confidence: 99%

Multi-Band Polarization Insensitive Ultra-Thin THz Metamaterial Absorber for Imaging and EMI Shielding Applications

Saxena

Khanna

Awasthi

et al. 2021

AEM

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this article, a multi-band polarization-insensitive metamaterial absorber is designed for THz imaging and EMI shielding. A unique oval-shaped structure with three circular ring-shaped resonators is proposed with a unit cell dimension of36×36×19.6μm3. The absorbance of the proposed multiband MMA is 98.57%, 90%and 99.85% at 5.58, 7.98-8.84, 11.45THz frequency respectively. Return loss is nearly the same for the changing incident and polarization angle. Therefore, this metamaterial absorber with a wide range of polarization insensitivity is found and it is also suitable for quantum RADAR Imaging, energy harvesting, and optoelectronic devices.

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THz antennas design, developments, challenges, and applications: A review

Pant¹,

Malviya²

2023

Int J Communication

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Terahertz (0.1-10 THz) wireless communication will be the future technology to reach a top-notch data rate. THz is one of the most promising candidates for 6G systems because it provides enormous bandwidth, up to 100 GHz, and a massive data rate of up to 1 Tbps. THz antennas, antenna arrays, and MIMO antenna arrays in 6G are hot research topics for implementing 6G wireless communication systems. The 6G aims to continue to enhance the features of the 5G as it is capable of achieving the maximum high-speed data rate, excellent reliable communication, massive connectivity, and very low latency connectivity. The 6G requirements need high-gain antenna arrays and MIMO antenna arrays to combat the effect of atmospheric losses in high frequencies. An in-depth discussion of the planar THz antennas that have been extensively used in THz applications like imaging, sensing, and Internet-of-Things (IoT) has been conducted. The study of the THz antennas, antenna arrays, and MIMO antennas on different conducting materials such as copper and graphene, which are designed on different dielectric substrates such as polyimide, quartz, liquid crystalline polymer, and polytetrafluoroethylene, has been carried out in detail. Metamaterial, photoconductive, plasmonic antennas, and THz beamforming are significant parts of THz communications. This paper also provides antennas and antenna arrays based on them.

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High Isolation and High Gain Super-Wideband (0.33-10 THz) MIMO Antenna for THz Applications

Cited by 49 publications

References 14 publications

Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

Multi-Band Polarization Insensitive Ultra-Thin THz Metamaterial Absorber for Imaging and EMI Shielding Applications

THz antennas design, developments, challenges, and applications: A review

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High Isolation and High Gain Super-Wideband (0.33-10 THz) MIMO Antenna for THz Applications

Cited by 49 publications

References 14 publications

Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

Multi-Band Polarization Insensitive Ultra-Thin THz Metamaterial Absorber for Imaging and EMI Shielding Applications

THz antennas design, developments, challenges, and applications: A review

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Product

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High Isolation and High Gain Super-Wideband (0.33-10 THz) MIMO Antenna for THz Applications