Metamaterial-Based Antenna Performance Enhancement for MIMO System Applications

Sakli, Hèdi; Abdelhamid, Chafai; Essid, Chaker; Sakli, Nizar

doi:10.1109/access.2021.3063630

Cited by 51 publications

(30 citation statements)

References 26 publications

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“…The mutual coupling effect between MIMO components, which is dependent on the location of the MIMO elements and the gain of the MIMO antenna are major issues among researchers. Various MIMO antennas operating in the 5G sub-6 GHz spectrum are presented in 18 – 20 , all of which exhibited good isolation and MIMO performance. However, the gain and operational bandwidth of these proposed systems are lower.…”

Section: Introductionmentioning

confidence: 99%

Gain and isolation enhancement of a wideband MIMO antenna using metasurface for 5G sub-6 GHz communication systems

Hasan

Islam

Samsuzzaman

et al. 2022

Sci Rep

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This work proposes a compact metasurface (MS)-integrated wideband multiple-input multiple-output (MIMO) antenna for fifth generation (5G) sub-6 GHz wireless communication systems. The perceptible novelty of the proposed MIMO system is its wide operating bandwidth, high gain, lower interelement gap, and excellent isolation within the MIMO components. The radiating patch of the antenna is truncated diagonally with a partially ground plane, and a metasurface has been employed for enhancing the antenna performance. The suggested MS integrated single antenna prototype has a miniature dimension of 0.58λ × 0.58λ × 0.02λ. The simulated and measured findings demonstrate a wideband characteristic starting from 3.11 to 7.67 GHz including a high realized gain of 8 dBi. The four-element MIMO system has been designed by rendering each single antenna orthogonally to one another while retaining compact size and wideband properties between 3.2 and 7.6 GHz. The suggested MIMO prototype has been designed and fabricated on a low loss Rogers RT5880 substrate with a miniature dimension of 1.05λ × 1.05λ × 0.02λ and its performance is evaluated using a suggested 10 × 10 array of a square enclosed circular split ring resonators within the same substrate material. The inclusion of the proposed metasurface with a backplane significantly reduces antenna backward radiation and manipulates the electromagnetic field, thus improving the bandwidth, gain and isolation of MIMO components. The suggested 4-port MIMO antenna offers a high realized gain of 8.3 dBi compared to existing MIMO antennas with an excellent average total efficiency of 82% in the 5G sub-6 GHz spectrum and is in good accordance with measured results. Furthermore, the developed MIMO antenna exhibits outstanding diversity characteristics in respect of envelope correlation coefficient (ECC) less than 0.004, diversity gain (DG) close to 10 dB (> 9.98 dB) and high isolation between MIMO components (> 15.5 dB). Therefore, the proposed MS-inspired MIMO antenna substantiates its applicability for 5G sub-6 GHz communication networks.

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Section: Introductionmentioning

confidence: 99%

Gain and isolation enhancement of a wideband MIMO antenna using metasurface for 5G sub-6 GHz communication systems

Hasan

Islam

Samsuzzaman

et al. 2022

Sci Rep

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“…is is due to the isolation performance between the antennas. is structure implies an increase in the performance of MIMO system [22][23][24][25][26][27][28][29][30][31][32].…”

Section: Isolation Between Two Mimo Antennasmentioning

confidence: 99%

New MIMO Antenna with Filtration for the Future Multiuser Systems in Satellite Communications

Essid

Abdelhamid

Almalki

et al. 2022

Wireless Communications and Mobile Computing

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This paper emphasizes the function of the split ring resonator (SRR) within the design of ultra-wideband (UWB) antennas. We presented an antenna that belongs to the category of UWB antenna with two rejected bands based on square SRR. At first, we presented a UWB antenna. This antenna is designed to operate in the band 2.3–11.5 GHz. Then, with the integration of two SRR cells, we were capable of filtering the bands 3.7–3.9 GHz and 8.7–8.9 GHz without losing the UWB characteristics outside these rejected bands. Next, to ensure the proper performance of the MIMO system, we studied the use of metamaterials in the design of MIMO (Multiple-Input Multiple-Output) antennas for miniaturization and antenna performance.

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“…By using this MTM, the transmission coefficient between two antennas decreases to − 43 dB, which is 1.87 times less compared to the same without using MTM. Moreover, the presented MIMO system with MTM helps to achieve size reduction and good diversity gain 16 . In another work, a metamaterial with near zero index is used to improve gain of a multiband antenna using MTM as a superstrate 17 .…”

Section: Introductionmentioning

confidence: 99%

Gap coupled symmetric split ring resonator based near zero index ENG metamaterial for gain improvement of monopole antenna

Moniruzzaman

Islam

Samsuzzaman

et al. 2022

Sci Rep

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In this article, a symmetric split ring resonator (SRR) based metamaterial (MTM) is presented that exhibits three resonances of transmission coefficient (S21) covering S, C, and X-bands with epsilon negative (ENG) and near zero index properties. The proposed MTM is designed on an FR4 substrate with the copper resonator at one side formed with two square rings and one circular split ring. The two square rings are coupled together around the split gap of the outer ring, whereas two split semicircles are also coupled together near the split gaps. Thus, gap coupled symmetric SRR is formed, which helps to obtain resonances at 2.78 GHz, 7.7 GHz and 10.16 GHz with desired properties of the MTM unit cell. The MTM unit cell's symmetric nature helps reduce the mutual coupling effect among the array elements. Thus, different array of unit cells provides a similar response to the unit cell compared with numerical simulation performed in CST microwave studio and validated by measurement. The equivalent circuit is modelled for the proposed MTM unit cell in Advanced Design System (ADS) software, and circuit validation is accomplished by comparing S21 obtained in ADS with the same of CST. The effective medium ratio (EMR) of 10.7 indicates the compactness of the proposed MTM. A test antenna is designed to observe the effect of the MTM over it. Numerical analysis shows that the proposed MTM have an impact on the antenna when it is used as the superstrate and helps to increase the gain of the antenna by 95% with increased directivity. Thus, compact size, high EMR, negative permittivity, near zero permeability and refractive index makes this MTM suitable for S, C and X band applications, especially for antenna gain with directivity enhancement.

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Metamaterial-Based Antenna Performance Enhancement for MIMO System Applications

Cited by 51 publications

References 26 publications

Gain and isolation enhancement of a wideband MIMO antenna using metasurface for 5G sub-6 GHz communication systems

Gain and isolation enhancement of a wideband MIMO antenna using metasurface for 5G sub-6 GHz communication systems

New MIMO Antenna with Filtration for the Future Multiuser Systems in Satellite Communications

Gap coupled symmetric split ring resonator based near zero index ENG metamaterial for gain improvement of monopole antenna

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