A high gain antenna utilizing Mu-near-zero metasurface structures for 5G applications

Abdelaziem, Islam H.; Ibrahim, Ahmed A.; Abdalla, Mahmoud A.

doi:10.1017/s1759078722000526

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…In addition, the developed MMR exhibits a negative index property, as shown in Figure 2 c, implying this could play a vital role in improving the antenna’s performance [ 46 ]. Thus, the proposed wideband MMR with MNZ and a negative index property can be used to improve the gain and isolation in the wideband MIMO antenna technology [ 18 , 24 , 35 , 47 , 48 ].…”

Section: Mm-based Reflectormentioning

confidence: 99%

A Compact Mu-Near-Zero Metamaterial Integrated Wideband High-Gain MIMO Antenna for 5G New Radio Applications

et al. 2023

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This article demonstrates a compact wideband four-port multiple-input-multiple-output (MIMO) antenna system integrated with a wideband metamaterial (MM) to reach high gain for sub-6 GHz new radio (NR) 5G communication. The four antennas of the proposed MIMO system are orthogonally positioned to the adjacent antennas with a short interelement edge-to-edge distance (0.19λmin at 3.25 GHz), confirming compact size and wideband characteristics 55.2% (3.25–5.6 GHz). Each MIMO system component consists of a fractal slotted unique patch with a transmission feed line and a metal post-encased defected ground structure (DGS). The designed MIMO system is realized on a low-cost FR-4 printed material with a miniature size of 0.65λmin × 0.65λmin × 0.02λmin. A 6 × 6 array of double U-shaped resonator-based unique mu-near-zero (MNZ) wideband metamaterial reflector (MMR) is employed below the MIMO antenna with a 0.14λmin air gap, improving the gain by 2.8 dBi and manipulating the MIMO beam direction by 60°. The designed petite MIMO system with a MM reflector proposes a high peak gain of 7.1 dBi in comparison to recent relevant antennas with high isolation of 35 dB in the n77/n78/n79 bands. In addition, the proposed wideband MMR improves the MIMO diversity and radiation characteristics with an average total efficiency of 68% over the desired bands. The stated MIMO antenna system has an outstanding envelope correlation coefficient (ECC) of <0.045, a greater diversity gain (DG) of near 10 dB (>9.96 dB), a low channel capacity loss (CCL) of <0.35 b/s/Hz and excellent multiplexing efficiency (ME) of higher than −1.4 dB. The proposed MIMO concept is confirmed by fabricating and testing the developed MIMO structure. In contrast to the recent relevant works, the proposed antenna is compact in size, while maintaining high gain and wideband characteristics, with strong MIMO performance. Thus, the proposed concept could be a potential approach to the 5G MIMO antenna system.

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Section: Mm-based Reflectormentioning

confidence: 99%

A Compact Mu-Near-Zero Metamaterial Integrated Wideband High-Gain MIMO Antenna for 5G New Radio Applications

et al. 2023

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“…The patch thickness and transmission line thickness are t << λ₀, where λ₀ is the free space wavelength [19]. Hence, the ground plane length (Lg) and width (Wg) would be given as:…”

Section: Ground Planementioning

confidence: 99%

Compact 28GHz Microstrip Patch Antenna Design with Reduced SAR for 5G Applications

Al-Tayyar,

Ali

2023

MMEP

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Fulfilling the requirements of 5G applications necessitates the design of low-cost, compact, and high-performance antennas capable of supporting high data rates. As these antennas are often in direct contact with the human body, it is imperative to limit radiation exposure. This study presents the design of a Microstrip Patch Antenna (MSPA) with a resonant frequency of 28 GHz. The performance of the proposed design is evaluated using Computer Simulation Technology (CST) software. Considering the importance of compactness in 5G applications, the dimensions of the proposed antenna have been optimized for this purpose. This paper also discusses the role of the ground plane in reducing the Specific Absorption Rate (SAR). The proposed MSPA design demonstrates a high gain of 7.3 dB, a radiation efficiency of 89.4%, and compact dimensions of 5.18×3.36×0.3 mm. The maximum SAR value is 1.68 W/kg (per 1 g of tissue), or 0.121 W/kg (per 10 g of tissue). These results suggest that the proposed design holds promising potential for enabling low-cost, compact, high-speed 5G devices that are safe for human tissues. This is particularly relevant for wearable devices, the Internet of Things (IoT), and mobile wireless networks.

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High gain metasurface integrated millimeter-wave planar antenna

Tahir,

Rafique,

Ahmed

et al. 2023

Int. J. Microw. Wireless Technol.

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A metasurface reflector-backed wideband planar antenna is designed for millimeter-wave (mmWave) applications. A simple meandering structure is used for radiation element design, while the back side consists of a partial ground plane and parasitic elements. The utilization of meander-shaped element led to small antenna dimensions. The partial ground plane is used to achieve wide bandwidth, while the parasitic elements are used to improve the impedance matching toward higher frequency bands. To achieve high gain and directional radiation characteristics, an array of metasurfaces is placed behind the radiating element. It is observed from the simulated results that the proposed antenna system offers 17.72 GHz of impedance bandwidth in the operating range of 22.28–40 GHz, while the measured impedance bandwidth is noted to be 15.8 GHz, ranging from 23 to 38.8 GHz. Furthermore, it is observed that a metasurface-based planar antenna tends to achieve a peak gain of ≈9 dBi in the band of interest.

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A high gain antenna utilizing Mu-near-zero metasurface structures for 5G applications

Cited by 3 publications

References 31 publications

A Compact Mu-Near-Zero Metamaterial Integrated Wideband High-Gain MIMO Antenna for 5G New Radio Applications

A Compact Mu-Near-Zero Metamaterial Integrated Wideband High-Gain MIMO Antenna for 5G New Radio Applications

Compact 28GHz Microstrip Patch Antenna Design with Reduced SAR for 5G Applications

High gain metasurface integrated millimeter-wave planar antenna

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