Mutual coupling reduction in an antenna array by using two parasitic microstrips

Sun, Xu-Bao; Bai, Xingzhen

doi:10.1016/j.aeue.2017.01.013

Cited by 19 publications

(11 citation statements)

References 9 publications

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“…To reduce the effect of mutual coupling, the isolation (S 21 ) between the antenna elements needs to be maximized. Several authors in available literature have proposed various methods for suppressing the effects of mutual coupling (Abushamleh et al., 2013; Acharjee et al., 2018; Akbari et al., 2017; Alsultan & Ögücü Yetkin, 2018; Arun et al., 2014; Bait‐Suwailam et al., 2010; Banerjee et al., 2017; Beiranvand et al., 2015; Bilal, 2020; Chen et al., 2018; Emadeddin et al., 2017; Faizan et al., 2019; Farahani et al., 2010; C. K. Ghosh et al., 2013; J. Ghosh et al., 2016; Guha et al., 2006, 2009; Hassan et al., 2017; Islam et al., 2013; James & Hall, 1997; Kadagan et al., 2019; Kumar & Guha, 2012; Moussa et al., 2021; Najafy & Bemani, 2020; OuYang et al., 2011; Qian et al., 2018; Quevedo‐Teruel et al., 2010; Salehi & Tavakoli, 2006; Sun & Cao, 2017; Teng et al., 2016; Wang et al., 2020; Wei et al., 2016; Yu et al., 2017; Zaker, 2021; Zhao et al., 2014; Zhaolinet al., 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Ghosh et al, 2016;Guha et al, 2006Guha et al, , 2009Hassan et al, 2017;Islam et al, 2013;James & Hall, 1997;Kadagan et al, 2019;Kumar & Guha, 2012;Moussa et al, 2021;Najafy & Bemani, 2020;OuYang et al, 2011;Qian et al, 2018;Quevedo-Teruel et al, 2010;Salehi & Tavakoli, 2006;Sun & Cao, 2017;Teng et al, 2016;Wang et al, 2020;Wei et al, 2016;Yu et al, 2017;Zaker, 2021;Zhao et al, 2014;Zhaolinet al, 2018). 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, 2006Guha et al, , 2009OuYang 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;…”

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confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

mentioning

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 recent years, researchers have proposed various methods such as DGS [3][4][5][6][7][8], EBG [9][10], parasitic element [11][12][13], microstrip resonators [14][15][16][17][18][19][20], EMSS [21][22][23][24], FSS [25][26][27], metamaterial structure [28], coupling matrix based band stop lter [29], meander line [30][31] etc. to suppress the affect of MC between two patch antennas.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Soft Surface (EMSS) Integrated MIMO Antennas With Reduced Mutual Coupling And Cross-Polarization Radiation

Bhattacharjee¹,

Mandal²,

Ghosh³

2021

Preprint

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For closely spaced microstrip antenna elements, Mutual Coupling (MC) is an inevitable phenomenon which degrades antenna performances like gain, radiation pattern, return loss, radiation efficiency etc. Lot of works have been done on the reduction of MC and published the results in the open literatures. This paper presents an approach to suppress MC between two closely spaced microstrip radiators. This is achieved by inserting properly designed EMSS structure between the radiating elements. This EMSS acts as an electrical wall between two rectangular patches and reduces mutual coupling up to 50 dB at resonance frequency of 4.35 GHz. In this attempt, Cross Polarization (XP) reduction of 12.5dB has also been achieved with a gain 5.40dBi for the proposed antenna. The centre to centre spacing between the antenna elements is taken as 22.1mm (0.32λ).The proposed MIMO antenna system can be used for satellite communication and radar system.

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“…In recent years, a variety of techniques including different shapes of defected ground structures (DGS) [9,[10][11][12][13], parasitic elements [2,8,14,15], electromagnetic band-gap structures [16], polarization conversion isolators [12], and metamaterial-based DGSs [13] have been reported to improve the isolation in MIMO array system. An indepth study of these techniques shows some of their restrictions, including the need for larger size and multi-layer structure and high design and fabrication complexity and cost [1,2,[8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Matching and Vialess Decoupling of Nearby Patch Antennas for MIMO System

Ghannad

Khalily

Xiao

et al. 2019

Antennas Wirel. Propag. Lett.

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Simultaneous improvement of matching and isolation for a modified two-element microstrip patch antenna array is proposed. Two simple patch antennas in a linear array structure are designed, whereas, the impedance matching and isolation are improved without using any conventional matching networks. The presented low profile multifunctional via-less structure comprises of only two narrow T-shaped stubs connected to feed lines, a narrow rectangular stub between them, and a narrow rectangular slot on the ground plane. This design provides a simple, compact structure with low mutual coupling, low cost and no adverse effects on the radiation and resonance. To validate the design, a compact very-closely-spaced antenna array prototype is fabricated at 5.5 GHz which is suitable for multiple-input-multiple-output (MIMO) systems. The measured and simulated results are in good agreement with a 16 dB, and 40 dB of improvements in the matching and isolation, respectively.

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Mutual coupling reduction in an antenna array by using two parasitic microstrips

Cited by 19 publications

References 9 publications

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

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

Electromagnetic Soft Surface (EMSS) Integrated MIMO Antennas With Reduced Mutual Coupling And Cross-Polarization Radiation

Enhanced Matching and Vialess Decoupling of Nearby Patch Antennas for MIMO System

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