Circularly polarized MIMO antenna utilizing parasitic elements for simultaneous improvements in isolation, bandwidth and gain

Kim-Thi, Phuong; Tran, Huy Hung; Le, Tuan Tu

doi:10.1016/j.aeue.2021.153727

Cited by 18 publications

(9 citation statements)

References 34 publications

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“…However, those designs can operate in narrow BWs of less than 2%. Although introducing either parasitic elements [ 30 ] or MS within the same layer with the radiating elements [ 31 , 32 ] is an effective solution to improve operating BW, large overall dimensions could be their vital drawbacks. Another approach that offers wide BW is to use a metallic post [ 33 ], but this structure yields an antenna with a very high profile.…”

Section: Introductionmentioning

confidence: 99%

Metasurface-based dual-sense circularly polarized antenna for MIMO/full-duplex applications

Tran-Viet,

Nguyen Tuan,

Nguyen Quoc

et al. 2024

PLoS ONE

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This paper introduces a two-element antenna array with dual-sense circular polarization, wideband operation, and high isolation characteristics. The antenna consists of two conventional truncated corner patches and an extra layer of metasurface (MS) located above the radiating patches. The overall dimensions of the proposed antenna are 0.92 λ0 × 0.73 λ0 × 0.05 λ0 and the element spacings are 0.02 λ0 and 0.39 λ0 with respect to edge-to-edge and center-to-center spacings. For validation, measurements on a fabricated antenna prototype are carried out. The measured data demonstrate that the presented MS-based antenna has a wide operating bandwidth of 14.5% with high isolation of better than 26 dB. The excellent performance could be concluded from the results of the investigation, which indicates that the proposed MS-based antenna could be a good candidate for multiple-input multiple-output (MIMO) and full-duplex applications.

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Section: Introductionmentioning

confidence: 99%

Metasurface-based dual-sense circularly polarized antenna for MIMO/full-duplex applications

Tran-Viet,

Nguyen Tuan,

Nguyen Quoc

et al. 2024

PLoS ONE

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“…The truncated corners antenna and the parasitic element approach boost bandwidth. By combining two square patches separated by a diagonal slot and four parasitic components, we created a MIMO antenna with enhanced performance [ 32 ]. The MIMO antenna is constructed using periodic parasitic elements and truncated corner metallic radiators to boost isolation and the axial ratio [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of Compact, Multiband, High Gain, High Isolation, Metamaterial-Based MIMO Antennas for Wireless Communication Systems

et al. 2023

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We proposed a novel approach based on a complementary split-ring resonator metamaterial in a two-port MIMO antenna, giving high gain, multiband results with miniature size. We have also analyzed a circular disk metasurface design. The designs are also defected using ground structure by reducing the width of the ground plane to 8 mm and etching all other parts of the ground plane. The electric length of the proposed design is 0.5λ × 0.35λ × 0.02λ. The design results are also investigated for a different variation of complementary split-ring resonator ring sizes. The inner and outer ring diameters are varied to find the optimized solution for enhanced output performance parameters. Good isolation is also achieved for both bands. The gain and directivity results are also presented. The results are compared for isolation, gain, structure size, and the number of ports. The compact, multiband, high gain and high isolation design can apply to WiMAX, WLAN, and satellite communication applications.

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“…The wideband dual polarisation slot antenna consists of a radiator which has two concentric annular slots and it is powered by dual L-shaped microstrip feed lines, with orthogonal placement for polarisation and radiation pattern diversity capabilities (Sghaier and Latrach, 2021). Circularly polarised MIMO antenna with 2-square patch which are diagonally slotted with four parasitic elements gives improvement in bandwidth, gain and isolation (Kim-Thi and Tran, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Many techniques have been used in the literature for improving isolation. The techniques can be categorised into four broad approaches, namely, polarisation diversity (Taki and Abou-Rjeily, 2022; Adamiuk et al , 2009; Aboufoul et al , 2012; Osman et al , 2016; Peristerianos et al , 2016; Kaur et al , 2021; Sghaier and Latrach, 2021; Kim-Thi and Tran, 2021), quasi-self-complementary approach (Zhu et al , 2016; Khattak et al , 2021), pattern diversity (Tao and Feng, 2016; Divya et al , 2021; Dahl et al , 2017; Reddy et al , 2015; Sohi and Kaur, 2020) and usage of additional decoupling structures (Chacko et al , 2013; Xie et al , 2013; Chattha et al , 2013; Mao and Chu, 2014; MoradiKordalivand et al , 2014; Kang et al , 2015; Ramachandran et al , 2016; Chao-Ming et al , 2015; Bannered et al , 2017; Rajkumar et al , 2015; Deng et al , 2016; Li et al , 2013; Masoodi et al , 2020; Thakur et al , 2021; Abed et al , 2021; Singh et al , 2021; Kaboutari and Hosseini, 2021). We now provide a comprehensive review of some of these works.…”

Section: Introductionmentioning

confidence: 99%

A monopole polarisation diversity antenna for high density packaging MIMO applications

K.M.¹,

Kavya²,

Rajkumar

2023

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Purpose This paper aims to propose a single element, dual feed, polarisation diversity antenna. The proposed antenna operates from 2.9 to 10.6 GHz for covering the entire ultra-wideband (UWB) frequency range. The antenna is designed for usage in massive multiple input multiple output (MIMO) and closed packaging applications. Design/methodology/approach The size of the antenna is 24 × 24 × 1.6 mm3. The radiating element of the antenna is derived from the Sierpinski–Knopp (SK) fractal geometry for miniaturization of the antenna size. The antenna has a single reflecting stub placed between the two orthogonal feeds, to improve isolation. Findings The proposed antenna system exhibits S11 < −10 dB, S21 < −15 dB and stable radiation characteristics in the entire operating region. It also offers an envelope correlation coefficient < 0.01, a diversity gain > 9.9 dB and a capacity loss < 0.4 bps/Hz. The simulated and measured outputs were compared and results were found to be in similarity. Originality/value The proposed UWB-MIMO antenna has significant size reduction through usage of SK fractal geometry for radiating element. The antenna uses a single radiating element with dual feed. The stub is between the antenna elements which provide a compact and miniaturized MIMO solution for high density packaging applications. The UWB-MIMO antenna provides an isolation better than −20 dB in the entire UWB operating band.

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Circularly polarized MIMO antenna utilizing parasitic elements for simultaneous improvements in isolation, bandwidth and gain

Cited by 18 publications

References 34 publications

Metasurface-based dual-sense circularly polarized antenna for MIMO/full-duplex applications

Metasurface-based dual-sense circularly polarized antenna for MIMO/full-duplex applications

Design and Fabrication of Compact, Multiband, High Gain, High Isolation, Metamaterial-Based MIMO Antennas for Wireless Communication Systems

A monopole polarisation diversity antenna for high density packaging MIMO applications

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