Compact MIMO antenna with optimized mutual coupling reduction using DGS

Ibrahim, Ahmed A.; Abdalla, Mahmoud A.; Abdel‐Rahman, Adel B.; Hamed, Hesham F. A.

doi:10.1017/s1759078713001013

Cited by 46 publications

(27 citation statements)

References 21 publications

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“…In fact, the main difficulty in designing compact MIMO antennas is to achieve high levels of isolation between adjacent antennas while maintaining excellent radiation efficiency. In this area, several useful solutions to get proper isolation levels and compact MIMO structures are reported . In, the miniaturization technique is introduced to achieve good isolation, for two‐coupling element antennas designed for MIMO‐4G systems.…”

Section: Introductionmentioning

confidence: 99%

“…The technique of decoupling is also reported in to obtain a compact 2‐port MIMO antenna operating in the 2.4‐GHz standard for smart glasses. In Reference , a defected ground structure (DGS) is implemented between two microstrip patch antenna elements in order to limit the surface wave mode propagation. Another research work uses miniature and wideband DGSs to decrease mutual coupling is presented in Reference .…”

Section: Introductionmentioning

confidence: 99%

“…In this area, several useful solutions to get proper isolation levels and compact MIMO structures are reported. [3][4][5][6][7][8][9][10][11][12] In, 3 the miniaturization technique is introduced to achieve good isolation, for two-coupling element antennas designed for MIMO-4G systems. Another technique based on the reduction of mutual coupling between antenna elements by using metamaterials is presented in.…”

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confidence: 99%

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Ultra‐compact 4‐port DR antenna for multi‐input multi‐output standards

Belazzoug

Messaoudene

Aidel

et al. 2020

Int J RF Microw Comput Aided Eng

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Here, an ultra‐compact Multi‐Input‐Multi‐Output (MIMO) antenna system is presented for Wireless Local Area Network (WLAN) applications. The proposed antenna compactness approach is based on using Cylindrical‐Dielectric‐Resonator‐Antenna (CDRA) symmetry with the help of image theory to achieve the best size reduction of the resonators and maintain the resonance frequency of the original CDRA. The electric/magnetic walls approach is utilized to miniaturize the size by exploring the symmetry and antisymmetry of the resonant mode. First, a CDRA for MIMO system is designed and tested in terms of return loss and radiation efficiency. Then, two configurations of MIMO‐Antennas (two and four ports) are examined by using the same substrate size. The 2‐port‐MIMO antenna is built from two half‐CDRs (HCDRs) facing each other. Similarly, four‐quarter‐CDRs (QCDRs) are created to form a 4‐port MIMO antenna system. As a result, a 75% size reduction is achieved (size of 30 × 30 × 7.62 mm3). The measured impedance bandwidth for the 4‐port MIMO antenna is 5.4% (5.4‐5.7 GHz), with more than 15 dB isolation levels. Proper levels of Envelope Correlation Coefficients (ECCs) are also achieved (1 × 10−2‐4 × 10−2), with a channel capacity loss (CCL) of 0.04 bits/S/Hz. The proposed MIMO antennas are suitable for compact wireless communication systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Ultra‐compact 4‐port DR antenna for multi‐input multi‐output standards

Belazzoug

Messaoudene

Aidel

et al. 2020

Int J RF Microw Comput Aided Eng

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“…Changing the current propagation path to restrain coupling multiple often chooses neutralization line techniques [7,8]. Besides, it is also common to use a defective ground structure [9][10][11] as a band-stop filter to achieve decoupling. In addition to the traditional methods, the method of using the special properties of metamaterials to achieve the desired effect is also mentioned in [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A Compact 5G Decoupling MIMO Antenna Based on Split-Ring Resonators

Zhang

Guo

2019

International Journal of Antennas and Propagation

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A compact planar multiple-input multiple-output (MIMO) antenna array for 5G band is proposed in this paper. To improve the isolation of compact microstrip antenna array, this paper mainly presents an electromagnetic resonant ring method for MIMO antenna array. The proposed antenna can cover both the 3.3-3.6 GHz and 4.8-5 GHz bands proposed for the 5G band. The antenna proposed in this paper consists of two symmetrical meandered monopole radiators, grid structures, and a Y-shape element. Two different sizes of split-ring resonators (SRRs) are used to suppress the interference of the coupled signal to the antenna system; thereby it can reduce the mutual coupling effect. The experimental results show that the mutual coupling between the two elements is below -25 dB in both of the bands after adding the SRRs. And this antenna is only 23×19 mm2. Its compact size and structure can be used as a mobile terminal antenna.

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“…The approach of defecting ground plane beneath the radiating elements has been traditionally used to increase impedance bandwidth [14]. The antenna's impedance bandwidth covers a wide frequency range of 1.8-4.0 GHz at 10 dB, which is applicable to most of the operation bands of LTE, WiMAX, and WLAN standards.…”

Section: Introductionmentioning

confidence: 99%

Design of wideband orthogonal MIMO antenna with improved correlation using a parasitic element for mobile handsets

Akdağlı

Toktaş

2014

Int. J. Microw. Wireless Technol.

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In this paper, a novel design of compact wideband multiple-input multiple-output (MIMO) antenna operating over a frequency range of 1.8-4.0 GHz at 10 dB is presented for mobile terminals. The MIMO antenna design consists of two symmetrical and orthogonal radiating elements with a small size of 15.5 × 16.5 mm 2 printed on the corners of a mobile circuit board. The radiating element is composed of four meandered monopole branches with a strip-line fed by a probe. By triangularly trimming the corners of the common ground plane beneath the radiating elements, not only the mutual coupling is reduced, but also impedance bandwidth is increased. Although, the antenna in this form has sufficient correlation level between the radiating elements for MIMO operation, a novel design of plus-shaped parasitic element is inserted to the ground plane between those radiating elements in order to further enhance the isolation. The performance of the MIMO antenna is investigated in terms of s-parameters, radiation pattern, gain, envelope correlation coefficient (ECC), and total active reflection coefficient (TARC), and is verified through the measurements. The results demonstrate that the proposed MIMO antenna has good characteristics of wideband, isolation, gain, radiation pattern, and is compatible with LTE, WiMAX, and WLAN, besides it is small, compact, and embeddable in mobile terminals.

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Compact MIMO antenna with optimized mutual coupling reduction using DGS

Cited by 46 publications

References 21 publications

Ultra‐compact 4‐port DR antenna for multi‐input multi‐output standards

Ultra‐compact 4‐port DR antenna for multi‐input multi‐output standards

A Compact 5G Decoupling MIMO Antenna Based on Split-Ring Resonators

Design of wideband orthogonal MIMO antenna with improved correlation using a parasitic element for mobile handsets

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