Novel tri-band series fed microstrip antenna array for THz MIMO communications

Vijayalakshmi, K.; Selvi, C. S. Kanimozhi; Sapna, Baskaran

doi:10.1007/s11082-021-03065-w

Cited by 30 publications

(12 citation statements)

References 20 publications

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“…In this context, antennas design for THz communication is under consideration for quite some time (Abadal et al 2019;Akyildiz and Jornet 2016;Dash et al 2022;Faisal et al 2020;Hosseininejad et al 2019;Hosseininejad et al 2017;Sarieddeen et al 2019;Xu et al 2014). The multiple-input-multiple-output (MIMO) communication and antenna design for the same is being emphasized for increasing the data rate since inception of the massive MIMO and millimeter wave (mm-wave) beamforming concepts, which is extended to the THz frequency range as well (Akyildiz and Jornet 2016;Faisal et al 2020;Sarieddeen et al 2019), (Ali et al 2021;Ali et al 2020;Das et al 2021;Esfandiyari et al 2019;Luo et al 2019;Malhat et al 2022;Shamim et al 2021;Temmar et al 2021;Vijayalakshmi et al 2021;Zhang et al 2019). In many of these works, the massive MIMO antenna system is implemented with separate excitation of each radiator indicating implementation of fully digital beamforming (Akyildiz and Jornet 2016;Faisal et al 2020;Sarieddeen et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…(Pan et al 2016). The problem of mutual coupling reduction in THz graphene MIMO antennas is addressed in (Ali et al 2021;Vijayalakshmi et al 2021;Zhang et al 2019). A graphenebased frequency selective surface (FSS) is used in (Zhang et al 2019), where the structure becomes 3D and its fabrication becomes challenging, and a meandered line decoupling structure is used in (Vijayalakshmi et al 2021) for enhancement of isolation.…”

Section: Introductionmentioning

confidence: 99%

“…The problem of mutual coupling reduction in THz graphene MIMO antennas is addressed in (Ali et al 2021;Vijayalakshmi et al 2021;Zhang et al 2019). A graphenebased frequency selective surface (FSS) is used in (Zhang et al 2019), where the structure becomes 3D and its fabrication becomes challenging, and a meandered line decoupling structure is used in (Vijayalakshmi et al 2021) for enhancement of isolation. Recently, a tunable two-port THz MIMO antenna with the option of diplexing is reported in (Ali et al 2021), where the isolation is achieved by inserting a slot on the graphene patch.…”

Section: Introductionmentioning

confidence: 99%

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Tunable four-port MIMO/self-multiplexing THz graphene patch antenna with high isolation

2022

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A tunable terahertz four-port multiple-input-multiple-output (MIMO) graphene microstrip patch antenna with self-multiplexing ability is designed and numerically studied. The top layer of the four-port patch antenna, which is a symmetric cross-shaped graphene patch, is patterned using a crossslot. Insertion of this cross-slot improved the level of isolation to the order of 50−70 dB in the MIMO mode of operation. The frequency of impedance matching at each port of the designed antenna could be tuned independently by applying an electrostatic potential on the corresponding graphene patch enabling its usage as a MIMO self-diplexing and quadruplexing antenna. The MIMO performance parameters like envelope correlation coefficient, diversity gain, mean effective gain, etc. are found within the acceptable limits. An equivalent circuit model is presented to provide insight into the radiation mechanism and validate the results.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tunable four-port MIMO/self-multiplexing THz graphene patch antenna with high isolation

2022

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“…Due to the short wavelengths of umWave, large capacity antennas can be designed. The reasons why the scienti c community is intensifying research in the development of antennas that can work effectively in the THz band [7][8][9][10][11][12][13][14][15]. In [7] a microstrip patch antenna for wireless communication at terahertz bands is presented.…”

Section: Introductionmentioning

confidence: 99%

“…The simulated antenna offers a − 10 dB impedance bandwidth of 9.552 THz along with a maximum gain of 21.22 dB and a maximum radiation e ciency of 93.23%. In [11] a tri-band series fed microstrip two-element array multiple-input multiple-output antenna is implemented for Terahertz communications. The implemented antenna operates at 2.3 THz, 3.2 THz and 4.5 THz with a bandwidth of 38 GHz, 43 GHz and 60 GHz respectively.…”

Section: Introductionmentioning

confidence: 99%

A circularly polarized wideband high gain antenna for THz wireless applications

Lchhab

Ghzaoui

2022

Opt Quant Electron

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For several years, the elds of new technologies have been experiencing a real boom. The use of the terahertz band is an appropriate solution to meet the requirements of these technology. However, this technology has special requirements among which its antennas must have high bandwidth of few THz and achieve high gain for high productivity. In this paper, we will focus on the design and analysis of an antenna for THz technology. The antenna structure proposed in this work has better performance in terms of bandwidth and gain. In fact, multiples slots were added to the antenna to enhance the antenna's bandwidth. in addition, to enhance the antenna performance in terms of gain and protect the antenna feed line against environmental jeopardies a thin layer as superstrate is used. The suggested antenna covers a wide − 10dB bandwidth from 0.9 THz to 17.3 THz with a peak gain of 12.8 dBi. Moreover, a VSWR less than 2 at the operating band is obtained. Furthermore, the suggested antenna has circular polarized radiations with an axial ration (AR) less than 3 dB over a wide band 13.6THz-17.3THz which mean that the proposed antenna is well suited for application where the transmitter and receiver are moving which is the most case for wireless system. Thus, the suggested THz antenna could be a successful choice for terahertz application like future high-speed short-range indoor wireless communication, explosive detections, arms detection, medical imaging, pharmaceutical analysis, and material characterization in the THz regime industrial inspections.

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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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Novel tri-band series fed microstrip antenna array for THz MIMO communications

Cited by 30 publications

References 20 publications

Tunable four-port MIMO/self-multiplexing THz graphene patch antenna with high isolation

Tunable four-port MIMO/self-multiplexing THz graphene patch antenna with high isolation

A circularly polarized wideband high gain antenna for THz wireless applications

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

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