Stacked Patch Antenna With Dual-Polarization and Low Mutual Coupling for Massive MIMO

Gao, Yue; Ma, Runbo; Wang, Yapeng; Zhang, Qianyun; Parini, C.G.

doi:10.1109/tap.2016.2593869

Cited by 156 publications

(79 citation statements)

References 14 publications

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“…This includes the use of small cells (where the density of base stations is increased), cooperative communications (where interference is reduced via communication between nodes, to improve achievable data rates and reliability), carrier aggregation (where bandwidth from disparate channels is combined to meet requirements), and heterogeneous networks (where multiple networks operating at different frequencies and with different modulations, etc., are used). One key technology is massive multi-input-multioutput (M-MIMO) systems, where the number of antennas is increased by at least an order of magnitude (e.g., [5][6][7]). …”

Section: Background and Motivationsmentioning

confidence: 99%

Beam-Steering Performance of Flat Luneburg Lens at 60 GHz for Future Wireless Communications

Foster

Nagarkoti

Gao

et al. 2017

International Journal of Antennas and Propagation

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The beam-steering capabilities of a simplified flat Luneburg lens are reported at 60 GHz. The design of the lens is first described, using transformation electromagnetics, before discussion of the fabrication of the lens using casting of ceramic composites. The simulated beam-steering performance is shown, demonstrating that the lens, with only six layers and a highest permittivity of 12, achieves scan angles of ±30 ∘ with gains of at least 18 dBi over a bandwidth from 57 to 66 GHz. To verify the simulations and further demonstrate the broadband nature of the lens, raw high definition video was transmitted over a wireless link at scan angles up to 36 ∘ . Background and MotivationsThe quest for ubiquitous wireless connectivity with everincreasing data rates has been a feature of the last half century. With the advent of the Internet of Things (IoT) adding huge numbers of devices requiring bandwidth to an alreadychallenging push for even greater data rates to be supported on personal wireless terminals, considerable research effort is being invested into future wireless networks. High-data rate applications include the streaming of ultrahigh definition video and virtual and augmented reality (e.g., [1,2]); the use of 60 GHz for these applications is now relatively wellestablished, with IEEE standards (e.g., 802.15.3c, 802.11ad[3]) well-suited for this aspect of 5G services and networks.Other aspects of 5G development are concerned with serving greater numbers of end-terminals and reducing latency, with some applications in the IoT relevant to this (even when data rate requirements are not severe).A large number of technologies are being brought together to achieve the various aims for the next generation of wireless networks [4]. This includes the use of small cells (where the density of base stations is increased), cooperative communications (where interference is reduced via communication between nodes, to improve achievable data rates and reliability), carrier aggregation (where bandwidth from disparate channels is combined to meet requirements), and heterogeneous networks (where multiple networks operating at different frequencies and with different modulations, etc., are used). One key technology is massive multi-input-multioutput (M-MIMO) systems, where the number of antennas is increased by at least an order of magnitude (e.g., [5][6][7]).One key approach to realise the objectives of future wireless networks is to utilise previously unused parts of the electromagnetic spectrum at higher frequency bands, particularly the millimetre-wave (mm-wave) and terahertz (THz) bands. Currently, wireless networks predominantly use the spectrum between 0.1 and 10 GHz, as these have offered key benefits of long propagation ranges, ease of fabrication, and ease of power generation and signal modulation, amongst others. Conversely, the higher bands must overcome increased propagation losses, smaller feature sizes that increase fabrication challenges, and other problems; the demand for bandwidth is such that these challenges...

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Section: Background and Motivationsmentioning

confidence: 99%

Beam-Steering Performance of Flat Luneburg Lens at 60 GHz for Future Wireless Communications

Foster

Nagarkoti

Gao

et al. 2017

International Journal of Antennas and Propagation

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“…On the other hand, radiators based on different groups of antenna arrays have been exploited for avoiding the use of complex feeding structures [13,14]. In those cases, each array is individually and independently excited, with the purpose of proper covering a specific area.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is still necessary to use multiple feeding points. Gao et al [13] introduced a massive MIMO system based on a patch antenna array with 144 feeding ports, which allows to cover 360°. Additionally, by turning different groups of subarrays, it becomes possible to steer the beam to the desired direction [13].…”

Section: Introductionmentioning

confidence: 99%

Waveguide-Based Antenna Arrays for 5G Networks

Sodré

Costa

Santos

et al. 2018

International Journal of Antennas and Propagation

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This work reports the development of two high-performance waveguide-based antenna arrays for 5G cellular networks, operating in the underutilized millimetre wave (mm-wave) frequency spectrum. Two different scenarios of mm-wave communications are proposed for illustrating the applicability of the proposed arrays, which provide specific radiation patterns, namely, 12 dBi gain omnidirectional coverage in the 28 GHz band and dual-band sectorial coverage using the 28 and 38 GHz bands with gain up to 15.6 dBi. Numerical and experimental results of the array reflection coefficient, radiation pattern, and gain have been shown in an excellent agreement.

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“…However, due to the increase in the number of antenna elements for MIMO applications, such as the massive MIMO and full dimension MIMO (FD-MIMO) [4,5] systems, the isolation between radiation elements becomes a key factor that will affect the MIMO's performance. The most direct way to reduce the coupling between ports is to increase the spacing between the elements.…”

Section: Introductionmentioning

confidence: 99%

Multi-Band Omnidirectional Antenna With Hexagonal Prism Shape for Mimo Applications

Wang¹,

Tang²,

Zhang³

2017

PIER C

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Abstract-A multi-band antenna with omnidirectional radiation performance is proposed, which consists of 9 elements to form the structure of hexagonal prism. According to the placement rule, the antenna elements can be divided into two groups, one of which is placed in parallel on spaced three surfaces of the prism and the other placed vertically on the remaining spaced three faces of the prism. Each parallel element consists of two coplanar microstrip radiating patches which are nested within each other for miniaturization. Two parallel microstrips connected by a grounded disc with shorting pin are placed between the two patches to optimize the isolations. Each vertical element consists of two improved dipoles with four arms and a BALUN located at the back of the substrate plate which constitutes the quasi-Yagi structure. The resonant frequencies of the proposed prismatic antenna are 3.45 GHz, 4.9 GHz, 5.8 GHz and 15.2 GHz which can be used for low frequency bands of the fifth generation (5G) wireless communications and wireless local area networks (WLAN) as well as satellite communication applications.

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Stacked Patch Antenna With Dual-Polarization and Low Mutual Coupling for Massive MIMO

Cited by 156 publications

References 14 publications

Beam-Steering Performance of Flat Luneburg Lens at 60 GHz for Future Wireless Communications

Beam-Steering Performance of Flat Luneburg Lens at 60 GHz for Future Wireless Communications

Waveguide-Based Antenna Arrays for 5G Networks

Multi-Band Omnidirectional Antenna With Hexagonal Prism Shape for Mimo Applications

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