Self-Curing Decoupling Technique for MIMO Antenna Arrays in Mobile Terminals

Sui, Jiangwei; Dou, Yuhang; Mei, Xide; Wu, Ke-Li

doi:10.1109/tap.2019.2943410

Cited by 35 publications

(10 citation statements)

References 28 publications

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“…These eight elements antenna structure provides good efficiency, bandwidth, channel capacity and have a small size, hence it is a potential candidate for 5G applications. The self curing technique is used for decoupling purposes, to improve matching conditions, flexibility, ease of application, and compatibility in commonly used antennas like a loop, monopole, and inverted F antenna (IFA) [116]. IFA can be decoupled by placing one of the antennas in excited mode whereas the second antenna at a stable null point [117].…”

Section: ) Multi-element Without Metal Rim Antennasmentioning

confidence: 99%

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 Without Metal Rim Antennasmentioning

confidence: 99%

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

et al. 2020

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“…Utilizing decoupling structure is a method to balance the number of antennas and mutual coupling. The neutralization line, 6 lumped element, [7][8][9] metasurface, 10 and decoupling network 11 can be used to cancel the mutual coupling of the neighboring antenna elements. Besides, parasitic elements or branches [12][13][14] and defected ground structure [15][16][17] can be used to improve isolation between antenna elements.…”

Section: Introductionmentioning

confidence: 99%

Shared radiator based high‐isolated tri‐port mobile terminal antenna group design

Huang

Jiang

Zhang

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article proposes a high‐isolated tri‐port antenna group for 5G mobile terminals based on the shared radiator and mode orthogonality technology, which is realized by exciting the two orthogonal currents through two ports on a shared loop radiator and a patch antenna orthogonal to the loop on the back of the mobile terminal. The −6 dB impedance bandwidth of the three ports in the antenna group could cover the 3.4–3.6 GHz 5G band, while the isolation is above 20 dB within the antenna group, a very compact volume. In addition, a 12 × 12 MIMO antenna is proposed by integrating four antenna groups. The MIMO antenna still has measured isolation above 18 dB and efficiency above 50% over the operation band thanks to the orthogonal decoupling design. A good multiplexing performance is also achieved with the ECC of <0.08 and peak channel capacity of 60.29 bps/Hz at 20 dB SNR.

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“…However, closely-packed antenna elements in the same frequency bands usually su er from high mutual coupling, which degrades the RF sensitivity of the multiantenna system. Numerous decoupling methods have been studied in the literature [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. One often-seen decoupling method is to introduce an additional coupling path between the antennas to counter the original coupling by adding the resonant structure [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…For the design without any decoupling resonant structure [12][13][14], the capacitive loads [12,13] are tapped on the shorting strips of the inverted-F antennas (IFAs); however, the separation distance of 9 mm in [12] is too large for achieving only the 2.4 GHz band. Also, the addition of the branch strips to the original IFAs in [14] for inductive and capacitive coupling cancellation increases the total antenna design size, which is not favorable to notebook antenna design.…”

Section: Introductionmentioning

confidence: 99%

Conjoined, Two-Monopole Antenna Pair with Decoupling Inductor for Wi-Fi 6E Notebook Applications

Juan

Chang

2022

International Journal of Antennas and Propagation

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A low-profile, conjoined and yet decoupled two-monopole design for Wi-Fi 6E notebook applications is presented. The single monopole antenna has a small size of 4 mm × 18.7 mm. The antenna is composed of a two-branched monopole with two shorting inductors for producing the 5 GHz (5150–5825 MHz) and 6 GHz (5925–7125 MHz) bands, and an inductor loaded at one branch end and connecting to a tuning portion for 2.4 GHz (2400–2484 MHz) operation. Two symmetrical monopoles are further conjoined by a chip inductor that connects the open ends of the tuning portions, forming a compact footprint of 4 mm × 38.4 mm for the two-notebook antenna design. With the use of the decoupling inductor and a proper two-monopole arrangement, acceptable isolation and a low envelop correlation coefficient (ECC) can be attained.

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Self-Curing Decoupling Technique for MIMO Antenna Arrays in Mobile Terminals

Cited by 35 publications

References 28 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

Shared radiator based high‐isolated tri‐port mobile terminal antenna group design

Conjoined, Two-Monopole Antenna Pair with Decoupling Inductor for Wi-Fi 6E Notebook Applications

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