Compact Eight-Element Antenna Array for Triple-Band MIMO Operation in 5G Mobile Terminals

Wang, Hongwei; Zhange, Ruiheng; Luo, Yong; Yang, Guangli

doi:10.1109/access.2020.2967651

Cited by 73 publications

(76 citation statements)

References 37 publications

(35 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The future fifth-generation (5G) communication era will play an important role in the evolution of wireless communication systems [1]. The Multiple-Input-Multiple Output (MIMO)…”

Section: Introductionmentioning

confidence: 99%

16-Port Non-Planar MIMO Antenna System With Near-Zero-Index (NZI) Metamaterial Decoupling Structure for 5G Applications

et al. 2020

View full text Add to dashboard Cite

In this article, a low-cost 16-port non-planar Multiple-Input-Multiple Output (MIMO) antenna system is proposed for future 5G applications. The non-planar MIMO antenna system is established around a 3D-octagonal-shape polystyrene block. The MIMO elements are arranged on the eight-sides of octagonalshape block, whereas bottom and top faces of polystyrene block are left void. The single antenna element comprises of slotted microstrip patch with a stepped chamfered feed line and defected ground plane. Each MIMO element is designed on FR-4 substrate with a size of 22 mm × 20 mm, to cover the frequency band of 3.35 GHz to 3.65 GHz for the fifth-generation (5G) applications. The isolation between array elements is improved by using a meander-lines based near-zero-index epsilon-negative (NZI-ENG) metamaterial decoupling structure. The array elements are placed on the top-layer, whereas common connected ground plane and decoupling structure is placed on the bottom-layer. The metamaterial-based decoupling structure offers an isolation of more than 28 dB for antenna elements arranged in across and side-by-side configuration. Moreover, simulated and measured MIMO performance parameters i.e. Total Active Reflection Coefficient (TARC) < −18 dB, Envelop correlation coefficient (ECC) < 0.1 and Channel capacity loss (CCL) < 0.3 are in acceptable limits. The proposed non-planar 3D-MIMO antenna system can be employed for indoor localization systems and wireless personal area network applications, where different 5G devices are wirelessly linked to a centralized server. Moreover, a good agreement between simulated and measured results is achieved for the non-planar MIMO antenna system. INDEX TERMS Antenna, channel capacity loss (CCL), common ground plane, envelope correlation coefficient (ECC), fifth-generation (5G), epsilon negative metamaterial (ENG-MTM), multiple-input-multipleoutput (MIMO).

show abstract

“…The future fifth-generation (5G) communication era will play an important role in the evolution of wireless communication systems [1]. The Multiple-Input-Multiple Output (MIMO)…”

Section: Introductionmentioning

confidence: 99%

16-Port Non-Planar MIMO Antenna System With Near-Zero-Index (NZI) Metamaterial Decoupling Structure for 5G Applications

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In a Wi-Fi backscatter system, channel information between the tag sensor and the receiver can be obtained by transmitting preamble before transmitting data [12]. As in the following Equations (15) and (16), the indexes of symbols having maximum received power and the index of symbol having smallest received power were searched for each antenna from the received preambles in j-th antenna.…”

Section: Tcst Methodsmentioning

confidence: 99%

“…We simulated the case where the antenna of the reader is 1, 2, 4, and 8. Currently, the number of antennas supported in mobile terminals is up to four and research on 8-and 12-antennas array is actively ongoing [14,15]. However, because there were no basic results depending on the number of antennas simulation for eight antennas is performed.…”

Section: Performance and Computational Complexity Of The Low Compleximentioning

confidence: 99%

Wi-Fi Backscatter System with Tag Sensors Using Multi-Antennas for Increased Data Rate and Reliability

Kim

Park

Jung

et al. 2020

Sensors

View full text Add to dashboard Cite

In this paper, we propose tag sensor using multi-antennas in a Wi-Fi backscatter system, which results in an improved data rate or reliability of the signal transmitted from a tag sensor to a reader. The existing power level modulation method, which is proposed to improve data rate in a Wi-Fi backscatter system, has low reliability due to the reduced distance between symbols. To address this problem, we propose a Wi-Fi backscatter system that obtains channel diversity by applying multiple antennas. Two backscatter methods are described for improving the data rate or reliability in the proposed system. In addition, we propose three low complexity demodulation methods to address the high computational complexity problem caused by multiple antennas: (1) SET (subcarrier energy-based threshold) method, (2) TCST (tag’s channel state-based threshold) method, and (3) SED (similar Euclidean distance) method. In order to verify the performance of the proposed backscatter method and low complexity demodulation schemes, the 802.11 TGn (task group n) channel model was utilized in simulation. In this paper, the proposed tag sensor structure was compared with existing methods using only sub-channels with a large difference in received CSI (channel state information) values or adopting power-level modulation. The proposed scheme showed about 10 dB better bit error rate (BER) performance and throughput. Also, proposed low complexity demodulation schemes were similar in BER performance with a difference of up to 1 dB and the computational complexity was reduced by up to 60% compared to the existing Euclidean distance method.

show abstract

“…For achieving dual-or triple-band MIMO operation, there are several MIMO antennas designed in 5G mobile terminals have been reported. [27][28][29][30][31][32][33] However, their operating bandwidth are also not wide enough to meet the requirements of the future 5G wideband mobile communications. Besides, some of these MIMO antennas that required relatively large ground clearance or ground slits to realize their antenna structure design.…”

Section: Introductionmentioning

confidence: 99%

“…Especially for the Reference 22, the layout of its eight antennas is likely to introduce a new issue that how it coexists with the current 4G LTE and other functional antennas. For achieving dual‐ or triple‐band MIMO operation, there are several MIMO antennas designed in 5G mobile terminals have been reported 27‐33 . However, their operating bandwidth are also not wide enough to meet the requirements of the future 5G wideband mobile communications.…”

Section: Introductionmentioning

confidence: 99%

Design of MIMO antenna system operating in wideband of 3300 to 6400 MHz for future 5G mobile terminal applications

Wang

Zhang

Luo

et al. 2020

Int J RF Microw Comput Aided Eng

Self Cite

View full text Add to dashboard Cite

In this paper, a wideband eight-element antenna array operating in the 5G (Fifth-generation) NR (New Radio) frequency bands N77/N78/N79 (3300-5000 MHz), LTE (Long Term Evolution) band 46 (5150-5925 MHz), and EU (European Union) 5G band of 5900 to 6400 MHz for 8 × 8 MIMO (Multi-Input Multi-Output) operation in the future 5G mobile terminal is presented. The proposed eight antenna elements are all co-coupled-fed IFA (Inverted-F antenna)/loop structure, and are divided into two same sub-arrays which printed on the inner surface of two long frames of the mobile terminal, respectively. All the simulated and measured results present consecutive 6-dB impedance bandwidth of 3200 to 6500 MHz, acceptable isolations (better than 12 dB), and good total efficiencies (more than 50%). Besides, the proposed wideband 8-antenna MIMO system has also shown good MIMO performances with ECCs (envelope correlation coefficient) are all lower than 0.08, and ergodic channel capacities are all higher than 37.8 bps/Hz within the entire desired operation bands. In addition, the hand phantom effects are also investigated. The prototype of the proposed wideband eight-element antenna array is fabricated and measured, and a quite good agreement between simulation and measurement is obtained.

show abstract

Compact Eight-Element Antenna Array for Triple-Band MIMO Operation in 5G Mobile Terminals

Cited by 73 publications

References 37 publications

16-Port Non-Planar MIMO Antenna System With Near-Zero-Index (NZI) Metamaterial Decoupling Structure for 5G Applications

16-Port Non-Planar MIMO Antenna System With Near-Zero-Index (NZI) Metamaterial Decoupling Structure for 5G Applications

Wi-Fi Backscatter System with Tag Sensors Using Multi-Antennas for Increased Data Rate and Reliability

Design of MIMO antenna system operating in wideband of 3300 to 6400 MHz for future 5G mobile terminal applications

Contact Info

Product

Resources

About