Wideband MIMO Antenna Array Covering 3.3–7.1 GHz for 5G Metal-Rimmed Smartphone Applications

Cai, Qinyi; Li, Yixin; Zhang, Xugang; Shen, Wenhui

doi:10.1109/access.2019.2944681

Cited by 73 publications

(67 citation statements)

References 48 publications

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“…Content may change prior to final publication. about 3300-7100 MHz is provided but isolation is comparatively low [121]. It is also observed that [123] provides isolation better than 13 dB.…”

Section: ) Multi-element With Metal Rim Antennamentioning

confidence: 89%

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Fifth Generation Antennas: A Comprehensive Review of Design and Performance Enhancement Techniques

et al. 2020

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The intensive research in the fifth generation (5G) technology is a clear indication of technological revolution to meet the ever-increasing demand and needs for high speed communication as well as Internet of Thing (IoT) based applications. The timely upgradation in 5G technology standards is released by third generation partnership project (3GPP) which enables the researchers to refine the research objectives and contribute towards the development. The 5G technology will be supported by not only smartphones but also different IoT devices to provide different services like smart building, smart city, and many more which will require a 5G antenna with low latency, low path loss, and stable radiation pattern. This paper provides a comprehensive study of different antenna designs considering various 5G antenna design aspects like compactness, efficiency, isolation, etc. This review paper elaborates the state-of-the-art research on the different types of antennas with their performance enhancement techniques for 5G technology in recent years. Also, this paper precisely covers 5G specifications and categorization of antennas followed by a comparative analysis of different antenna designs. Till now, many 5G antenna designs have been proposed by the different researchers, but an exhaustive review of different types of 5G antenna with their performance enhancement method is not yet done. So, in this paper, we have attempted to explore the different types of 5G antenna designs, their performance enhancement techniques, comparison, and future breakthroughs in a holistic way.

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Section: ) Multi-element With Metal Rim Antennamentioning

confidence: 89%

“…In [121] along with wideband, the metal rim MIMO multielement antenna is characterized by reduced antenna size due to inverted-F antenna design along with tuning stubs. The multi-element antenna design consists of eight elements that cover 3.3-7.1 GHz and uses the FR4 substrate.…”

Section: ) Multi-element With Metal Rim Antennamentioning

confidence: 99%

Fifth Generation Antennas: A Comprehensive Review of Design and Performance Enhancement Techniques

et al. 2020

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“…1(a). The aim is to present a highly isolated MIMO antenna design with omnidirectional radiation patterns [22]- [24] at two targeted operating bands, i.e. 2.6 GHz and 3.5 GHz since these two bands are common for 4G and 5G applications.…”

Section: Configurations Of Mimo Antenna System and Tapered Slot Amentioning

confidence: 99%

Realization of a Tapered Slot Array as Both Decoupling and Radiating Structure for 4G/5G Wireless Devices

2019

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As a combination of microwave Multiple-Input Multiple-Output (MIMO) antenna system and mm-wave antenna array, an integrated design is proposed to provide multi-band, high port isolation, and high gain antenna solution for 4G/5G wireless devices. In this work, an array of tapered slots is used as a decoupling structure at microwave frequency and as an antenna array at mm-wave frequency. The proposed geometry consists of a dual-band monopole MIMO antenna system operating at 4G (2.6 GHz) and 5G (3.5 GHz) sub-6 GHz bands. The wideband port isolation of more than 25 dB is achieved by introducing a tapered slot array structure. One of the key design features is the utilization of these slots as an antenna array with a peak realized gain of 15 dBi at 28 GHz, making this array dual-functional, thus more feasible for compact 4G/5G handheld devices. The proposed design is printed on an RO-5880 substrate with an overall size of 70 mm × 50 mm × 0.51 mm. The measured −10-dB impedance matching bandwidth covers two sub-6 GHz bands (from 2.45 GHz to 2.85 GHz and from 3.18 GHz to 3.68 GHz), and the wide mm-wave band from 25 GHz to 30 GHz. INDEX TERMS Decoupling, MIMO, tapered slot antenna array, 4G/5G.

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“…Some MIMO antennas for 5G smartphone terminals have been proposed. The types of antenna elements selected are mainly inverted F antennas [7][8][9][10], loop antennas [11][12][13][14], and slot antennas [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A Low-Profile and High-isolated MIMO Antenna for 5G Mobile Terminal

Sun

et al. 2020

Micromachines

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An eight-element multiple-input multiple-output (MIMO) frame antenna array in the 3.5 GHz band (3400–3600 MHz) for 5G mobile terminal systems was presented. By using the adjacent grounding and electromagnetic coupling feeding technology, the loop antenna element could generate two resonant frequencies, thus effectively expanding its bandwidth. By adopting double-sided parallel strip line (DSPSL) technology, the electromagnetic coupling inside the loop antenna could be adjusted, and the size of the loop antenna could be effectively reduced so that the MIMO antenna array could obtain a low-profile structure. The total size of the MIMO array was 150 mm × 75 mm × 5.3 mm. Without additional isolation measures, the measured −6 dB impedance bandwidth (BW) was 3400–3660 MHz, and the minimum isolation between antenna elements was better than −20 dB. The proposed antenna was expected to be applied to 5G mobile terminals based on its low-profile, high-isolated characteristics, and good MIMO performance.

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Wideband MIMO Antenna Array Covering 3.3–7.1 GHz for 5G Metal-Rimmed Smartphone Applications

Cited by 73 publications

References 48 publications

Fifth Generation Antennas: A Comprehensive Review of Design and Performance Enhancement Techniques

Fifth Generation Antennas: A Comprehensive Review of Design and Performance Enhancement Techniques

Realization of a Tapered Slot Array as Both Decoupling and Radiating Structure for 4G/5G Wireless Devices

A Low-Profile and High-isolated MIMO Antenna for 5G Mobile Terminal

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