Mutual Coupling Reduction of E-Shaped MIMO Antenna with Matrix of C-Shaped Resonators

Alsultan, Raghad Ghalib Saadallah; Yetkin, Gölge Ögücü

doi:10.1155/2018/4814176

Cited by 19 publications

(19 citation statements)

References 13 publications

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“…(a) Modified serpentine structure (Arun et al, 2014) and (b) center metallic reflector (Sharawi et al, 2017). (Li et al, 2012) as represented in Figure 21a, a novel H-shape parasitic element embedded in the ground plane (Liu et al, 2018) as represented in Figure 21b, a T-shaped coupling element providing an additional decoupling path (Mak et al, 2008) as represented in Figure 22a, 2 × 3 matrices of the C-shaped resonator is proposed (Alsultan & Ögücü Yetkin, 2018) as represented in Figure 22b, parasitic fragment-type isolation element (Wang et al, 2016) as represented in Figure 23a and a periodic paperclip-shaped structure (Wen & Xin-Liang, 2018) as represented in Figure 23b have been employed among patch antennas to minimize the MC between them. Further, Payandehjoo and Abhari have presented a comprehensive investigation KUMAR ET AL.…”

Section: Parasitic Elements/structuresmentioning

confidence: 99%

“…(Debnath et al, 2018) and (b) a group of six parasitic elements (Min et al, 2005). (Mak et al, 2008) and (b) 2 × 3 matrix of C-shaped resonator (Alsultan & Ögücü Yetkin, 2018). (Li et al, 2012) and (b) novel H-shaped parasitic element embedded in the ground plane (Liu et al, 2018).…”

Section: 1029/2020rs007122mentioning

confidence: 99%

“…Figure 22. (a) A T-shaped coupling element(Mak et al, 2008) and (b) 2 × 3 matrix of C-shaped resonator(Alsultan & Ögücü Yetkin, 2018).…”

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confidence: 99%

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A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

et al. 2021

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With the advancement in the high data rates wireless transmission, the demand for high channel capacity planar antennas, especially for handheld devices, has shown a significant market. Multiple-Input-Multiple-Output (MIMO) antennas can fulfill the top requirement. MIMO antenna helps in increasing data throughput and link coverage without sacrificing additional bandwidth or increased transmit power (Kumar et al., 2018a, 2018b). The MIMO antenna's other advantages are: high data throughput and link range without additional spectrum requirement, increased transmit power, spatial diversity and pattern diversity, and less signal dropout (Kumar et al., 2019a). In MIMO, multiple antennas radiate simultaneously and act as a transmitter or receiver depending upon its purpose. Multiple antennas placed on a single substrate sharing at least one standard radiating frequency will be considered an MIMO antenna. The MIMO antenna should have a common ground, easing the integration with monolithic integrated circuits (ICs) (Kumar et al., 2020a). However, sometimes the MIMO antenna does not have a common ground plane, but such cases should be avoided for better integration purposes and standard voltage levels. MIMO antenna should be more compact to have a reduced form factor. The MIMO antenna's compactness is another primary concern when multiple antennas are placed on a single substrate. If the antenna element spacing is less than the λ 0 /2, i.e., half of the free-space wavelength, then the antenna suffers from the surface wave and the space wave coupling effect between the antenna elements (Dama et al., 2011). For that reason, as the compactness increases, the chances of MC effect increase, resulting in degradation in the MIMO antenna performance due to power losses in a rich scattering environment. Therefore, an effective isolation technique is a must in the design of a compact MIMO antenna. Besides this, pattern and spatial diversity

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Section: Parasitic Elements/structuresmentioning

confidence: 99%

Section: 1029/2020rs007122mentioning

confidence: 99%

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A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

et al. 2021

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“…To materialize the suppression of the mutual coupling effect between two consecutive patch antennas, researchers have proposed various methods that include the use of defected ground structures (DGS; Acharjee et al., 2018; Banerjee et al., 2017; Guha et al., 2006, 2009; OuYang et al., 2011; Salehi & Tavakoli, 2006; Teng et al., 2016; Wei et al., 2016; Zhaolinet al., 2018), Electromagnetic Bandgap (EBG; Farahani et al., 2010; Hassan et al., 2017), parasitic element (Emadeddin et al., 2017; Faizan et al., 2019), microstrip resonators (Alsultan & Ögücü Yetkin, 2018; Bait‐Suwailam et al., 2010; Moussa et al., 2021; Sun & Cao, 2017; Wang et al., 2020; Zaker, 2021; Zhao et al., 2014), Electromagnetic Soft Surface (EMSS; Abushamleh et al., 2013; Chen et al., 2018; Islam et al., 2013; Najafy & Bemani, 2020), Frequency Selective Surface (FSS; Akbari et al., 2017; Beiranvand et al., 2015; Quevedo‐Teruel et al., 2010), metamaterial structure (Arun et al., 2014), coupling matrix‐based band‐stop filter (Yu et al., 2017), meander line (Bilal, 2020; Qian et al., 2018), etc. In Guha et al.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Mutual Coupling and Cross‐Polarization of Microstrip MIMO Antenna Using Electromagnetic Soft Surface (EMSS)

Bhattacharjee¹,

Mandal²,

Banerjee

2022

Radio Science

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In the telecommunication industry, the role of antenna systems is apocalyptic and exigent. In case of high performance aircraft and spacecraft, satellite communication systems, long distance radio telecommunications, missiles, etc. where size, weight, cost, and other factors are real constraints, microstrip antennas play a vital role in being susceptible to these systems owing to their light weight, low cost, thin planar profile, ease of fabrication, easy installation, and flexible properties. However, they suffer from certain disadvantages like narrow bandwidth, high mutual coupling, high orthogonal radiation, etc. (Balanis, 2005). Several researchers worldwide have proposed various techniques to overcome these disadvantages. Multiple-Input-Multiple-Output (MIMO) antennas present an antenna diversity system having ample advantages in wireless applications owing to the involvement of multiple antennas used at both transmitter and receiver ends. These multiple spatially distributed antennas are employable for transmitting/receiving signals in a multipath fading scenario. MIMO antenna system increases the data rate and reliability of communication without the need of extra power and bandwidth as compared to the Single-Input-Single-Output communication system. Apart from these advantages, it has few disadvantages also, one of which being the effect of mutual coupling. Thus, while designing compact MIMO antennas, wherein multiple antennas are placed on a single ground plane, mutual coupling takes place inevitably between adjacent antenna elements as energy is absorbed by an antenna while the other is working in operating mode. As a result, electromagnetic interaction takes place between the antenna elements. The occurrence of mutual coupling results owing to the effect of signal interference and near field coupling between two closely spaced radiating elements. Theoretically, mutual coupling between two or more microstrip elements is the consequence of separation, geometry, and alignment of the antenna elements.

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“…Because as the number of arrays rises, the coupling effects become more severe. This mutual coupling effect distorts antenna radiation patterns, changes antenna impedance matching, and causes correlation in sent or received signals, resulting in a decrease in MIMO system capacity [26,27]. Mutual coupling between each antenna element is unavoidable in a MIMO system, and it has a detrimental impact on the antenna's properties.…”

Section: Introductionmentioning

confidence: 99%

Wearable Metamaterial Dual-Polarized High Isolation UWB MIMO Vivaldi Antenna for 5G and Satellite Communications

et al. 2021

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A low-profile Multiple Input Multiple Output (MIMO) antenna showing dual polarization, low mutual coupling, and acceptable diversity gain is presented by this paper. The antenna introduces the requirements of fifth generation (5G) and the satellite communications. A horizontally (4.8–31 GHz) and vertically polarized (7.6–37 GHz) modified antipodal Vivaldi antennas are simulated, fabricated, and integrated, and then their characteristics are examined. An ultra-wideband (UWB) at working bandwidths of 3.7–3.85 GHz and 5–40 GHz are achieved. Low mutual coupling of less than −22 dB is achieved after loading the antenna with cross-curves, staircase meander line, and integration of the metamaterial elements. The antennas are designed on a denim textile substrate with = 1.4 and h= 0.5 mm. A conductive textile called ShieldIt is utilized as conductor with conductivity of 1.8 × 104. After optimizing the proposed UWB-MIMO antenna’s characteristics, it is increased to four elements positioned at the four corners of a denim textile substrate to be employed as a UWB-MIMO antenna for handset communications, 5G, Ka and Ku band, and satellite communications (X-band). The proposed eight port UWB-MIMO antenna has a maximum gain of 10.7 dBi, 98% radiation efficiency, less than 0.01 ECC, and acceptable diversity gain. Afterwards, the eight-ports antenna performance is examined on a simulated real voxel hand and chest. Then, it is evaluated and compared on physical hand and chest of body. Evidently, the simulated and measured results show good agreement between them. The proposed UWB-MIMO antenna offers a compact and flexible design, which is suitably wearable for 5G and satellite communications applications.

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Mutual Coupling Reduction of E-Shaped MIMO Antenna with Matrix of C-Shaped Resonators

Cited by 19 publications

References 13 publications

A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

Reduction of Mutual Coupling and Cross‐Polarization of Microstrip MIMO Antenna Using Electromagnetic Soft Surface (EMSS)

Wearable Metamaterial Dual-Polarized High Isolation UWB MIMO Vivaldi Antenna for 5G and Satellite Communications

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