Multibeam Antenna Technologies for 5G Wireless Communications

Wang, Hong; Jiang, Zhi Hao; Yu, Chao; Zhou, Jianyi; Chen, Peng; Yu, Zhiqiang; Zhang, Hui; Yang, Binqi; Pang, Xingdong; Jiang, Mei; Cheng, Yu Jian; Al-Nuaimi, Mustafa K. Taher; Zhang, Yan; Chen, Jixin; He, Shiwen

doi:10.1109/tap.2017.2712819

Cited by 792 publications

(280 citation statements)

References 198 publications

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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%

“…To the best of our knowledge, the majority of publications on mm-wave antennas are based on microstrip antennas [7][8][9][10][11][12][13][14] or SIW technology [15,16]. Waveguide-based antennas, which are typically used for radar applications, represent a potential and cost-effective solution for 5G indoor applications, such as corridors, theaters, stadiums, and convention centers, where coverage is not a critical issue.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

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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“…The smart antenna technologies developed based on the emerging radio frequency (RF) subsystems provide the 5G ultra‐dense networks infrastructures with the essential requirements for the purpose of optimal RF operation and propagation based on the front‐end arrays. Employment of the advanced electromagnetic (EM) systems consequently results in the improvement of the network performance that is evaluated in terms of the improved signal‐to‐noise ratio (SNR), which also increases the achievable information capacity and throughput, and thus expediting the required Gbps data transmission rate among the access point (AP) links . This can be achieved through combining the directional, narrow, and high‐gain RF beams, to effectively increase the array gain in the direction of interest (i.e., to enhance the coverage, and to maximize the signal strength), as well as to realize the spatial diversity as the signal moves throughout the sector; the latter is also based on minimizing the multipath fading by using the beam steering functionality toward a desired signal, and further steering a null toward an interfering one.…”

Section: Introductionmentioning

confidence: 99%

“…This can be achieved through combining the directional, narrow, and high‐gain RF beams, to effectively increase the array gain in the direction of interest (i.e., to enhance the coverage, and to maximize the signal strength), as well as to realize the spatial diversity as the signal moves throughout the sector; the latter is also based on minimizing the multipath fading by using the beam steering functionality toward a desired signal, and further steering a null toward an interfering one. In this regard, generating multiple beams using an array along with having wide bandwidth and electronic beam steering capability are of crucial importance for the 5G communication systems . For this purpose, the lens‐based switched‐beam networks are effectively employed to have control over the amplitude and phase at each element of the antenna array .…”

Section: Introductionmentioning

confidence: 99%

A low‐profile 28‐GHz Rotman lens‐fed array beamformer for 5G conformal subsystems

Rahimian

Abbasi

Alomainy

et al. 2018

Micro & Optical Tech Letters

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This paper reports on the first demonstration of an experimental millimeter‐wave (mm‐wave) beamforming based on the conformal Rotman lens. The passive switched‐beam network is intended for operation in the 28‐GHz band, covering the 18‐38 GHz range, for the deployment in the fifth generation (5G) subsystems. The primary objective of this work is to conduct the feasibility of designing a beamforming network (BFN) based on the liquid‐crystal polymer substrate, and to evaluate the performances in terms of the scattering (S)‐parameters and surface currents for the proposed flexural case of the convex‐circumferential bending. A prototype has been accurately fabricated, and a setup has also been deployed to conduct the measurements. The performance in terms of the linear progressive phase behavior, as the main figure of merit, has been shown. The BFN exhibits significant characteristics to be used as a low‐profile unit of the transceivers with the in‐built beam steering for the conformal 5G subsystems.

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“…www.advmat.de www.advancedsciencenews.com which has been widely used in multitasking phased arrays, [37] was recently applied to metasurfaces, [38][39][40] including segmented and interleaved metasurfaces. In these two types of structures, sub-arrays on the shared metasurface aperture, each performing a singly distinct functionality corresponding to a specific phase function, can either be entirely separated from each other, i.e., segmented metasurfaces, or have cells sparsely sampled at randomly selected lattice points, i.e., interleaved metasurfaces.…”

mentioning

confidence: 99%

A Single Noninterleaved Metasurface for High‐Capacity and Flexible Mode Multiplexing of Higher‐Order Poincaré Sphere Beams

et al. 2019

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gratings, [11] surface plasmon polariton mode couplers, [12] perturbed whispering gallery mode resonators, [13] and metasurfaces. [14][15][16][17][18][19][20][21][22][23] However, these VB generators can only produce a limited number of VBs, each with a uniform state-of-polarization (SOP), namely, scalar VBs. The broader class of generalized cylindrical vector vortex beams (VVBs), described by higherorder Poincaré spheres (HOPSs), can be represented by a coherent superposition of two circularly polarized scalar VBs with opposite spin states. [24,25] By virtue of their inhomogeneous SOP wavefront, the VVBs are useful for sub-diffraction focusing, [26] optical trapping, [27] lasers, [28] nondiffracting beams, [29] etc. Traditionally, generation of VVBs typically requires a number of cascaded optical components. [24,26,28,30] More recently, reflective/transmissive single-layer metasurfaces and transmissive dielectric gratings have been utilized for producing HOPS beams, while the generated multiplexed beams can carry a very limited number of modes, viz, one or two, [31][32][33][34][35][36] thus providing only a limited degree-of-freedom in terms of wavefront structuring and information-transferring channels.There has been considerable recent interest in developing the ability to form multiple concurrent beams with different wavefronts, which is especially desirable in the area of information technology. To this end, the shared-aperture method, Cylindrical vector vortex beams, a particular class of higher-order Poincaré sphere beams, are generalized forms of waves carrying orbital angular momentum with inhomogeneous states-of-polarization on their wavefronts. Conventional methods as well as the more recently proposed segmented/ interleaved shared-aperture metasurfaces for vortex beam generation are either severely limited by bulky optical setups or by restricted channel capacity with low efficiency and mode number. Here, a noninterleaved vortex multiplexing approach is proposed, which utilizes superimposed scattered waves with opposite spin states emanating from all meta-atoms in a coherent manner, counter-intuitively enabling ultrahigh-capacity, high-efficiency, and flexible generation of massive vortex beams with structured state-of-polarization. A series of exemplary prototypes, implemented by sub-wavelength-thick metasurfaces, are demonstrated experimentally, achieving kaleidoscopic vector vortex beams. This methodology holds great promise for structured wavefront shaping, vortex generation, and high information-capacity planar photonics, which may have a profound impact on transformative technological advances in fields including spin-Hall photonics, optical holography, compressive imaging, electromagnetic communication, and so on.

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Multibeam Antenna Technologies for 5G Wireless Communications

Cited by 792 publications

References 198 publications

Waveguide-Based Antenna Arrays for 5G Networks

Waveguide-Based Antenna Arrays for 5G Networks

A low‐profile 28‐GHz Rotman lens‐fed array beamformer for 5G conformal subsystems

A Single Noninterleaved Metasurface for High‐Capacity and Flexible Mode Multiplexing of Higher‐Order Poincaré Sphere Beams

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