Polarization Diversity and Adaptive Beamsteering for 5G Reflectarrays: A Review

Dahri, M. Hashim; Jamaluddin, Mohd Haizal; Khalily, Mohsen; Abbasi, Muhammad Inam; Selvaraju, Raghuraman; Kamarudin, M. R.

doi:10.1109/access.2018.2821358

Cited by 51 publications

(29 citation statements)

References 97 publications

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“…The only limitation associated with asymmetric patch reflectarray antenna is its narrow beamwidth, which tends to increase the number of sectors in a microcell. This limitation could be avoided by using a beamsteering strategy in the reflectarray antenna [6,19]. A wide reflection phase range, as in asymmetric patch reflectarray, would be beneficial for acquiring wide angle beamsteering operation.…”

Section: Receive Signal Strength (Rss) Measurementmentioning

confidence: 99%

“…Apart from a selected operating frequency range, a gain of more than 20 dB and a bandwidth of more than 1 GHz are required for a 5G antenna that is supposed to be used as a transmitter at the base station [4,5]. The additional and optional features of a 5G antenna also include polarization diversity and adaptive beamsteering [6]. Polarization diversity could be handy to overcome the flaw of narrow bandwidth, while swift electronic beamsteering can reduce the number of antennas on the base station.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Asymmetric Patch Reflectarray Antenna with Ground Ring Slots for 5G Communication Systems

et al. 2020

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The narrow bandwidth and low gain performances of a reflectarray are generally improved at the cost of high design complexity, which is not a good sign for high-frequency operation. A dual resonance asymmetric patch reflectarray antenna with a single layer is proposed in this work for 5G communication at 26 GHz. The asymmetric patch is developed from a square patch by tilting its one vertical side by a carefully optimized inclination angle. A progressive phase range of 650° is acquired by embedding a circular ring slot in the ground plane of the proposed element for gain improvement. A 332-element, center feed reflectarray is designed and tested, where its high cross polarization is suppressed by mirroring the orientation of asymmetric patches on its surface. The asymmetric patch reflectarray offers a 3 dB gain bandwidth of 3 GHz, which is 4.6% wider than the square patch reflectarray. A maximum measured gain of 24.4 dB has been achieved with an additional feature of dual linear polarization. Simple design with wide bandwidth and high-gain of asymmetric patch reflectarray make it suitable to be used in 5G communications at high frequencies.

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Section: Receive Signal Strength (Rss) Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Asymmetric Patch Reflectarray Antenna with Ground Ring Slots for 5G Communication Systems

et al. 2020

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“…To realize the gigabit data rate while overcoming the high loss in high frequency bands, several promising techniques, including high-gain array antennas and multibeam antennas (MBAs), are likely to be adopted in the 5G communication systems [2]- [4]. Recently, array antennas with broad bandwidths and high gains were investigated based on planar waveguides [5]- [6], substrate integrated waveguides (SIWs) [7]- [8], and microstrip techniques [9]- [11]. In [12]- [14], a variety of MBAs were achieved based on reflectarrays [12], transmission lenses [13], and beamforming circuits [14].…”

Section: Introductionmentioning

confidence: 99%

Planar Sub-Millimeter-Wave Array Antenna With Enhanced Gain and Reduced Sidelobes for 5G Broadcast Applications

Mao

Khalily

Xiao

et al. 2019

IEEE Trans. Antennas Propagat.

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120

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In this paper, a compact, broadband, planar array antenna with omnidirectional radiation in horizontal plane is proposed for the 26 GHz fifth-generation (5G) broadcast applications. The antenna element is composed of two dipoles and a substrate integrated cavity (SIC) as the power splitter. The two dipoles are placed side-by-side at both sides of the SIC and they are compensated with each other to form an omni-directional pattern in horizontal plane. By properly combing the resonant frequencies of the dipoles and the SIC, a wide impedance bandwidth from 24 to 29.5 GHz is achieved. To realize a large array while reducing the complexity, loss and size of the feeding network, a novel dual-port structure combined with radiation and power splitting functions is proposed for the 1 st time. The amplitude and phase on each element of the array can be tuned, and therefore, the grating lobes level can be significantly reduced. Based on the dual-port structure, an 8-element array with an enhanced gain of over 12 dBi is designed and prototyped. The proposed antenna also features low profile, low weight and low cost, which is desirable for 5G commercial applications. Measured results agree well with the simulations, showing that the proposed high-gain array antenna has a broad bandwidth, omni-directional pattern in horizontal plane, and low side-lobes.

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“…Unlike the capacity analyses for DPA systems, there have been other studies to directly reduce the PRA mismatch or improve the capacity degradation caused by the PRA mismatch. A PRA‐adjustable DPA has been developed 13,14 . If the PRA mismatch can be measured at an MT, it may be possible to achieve the PRA alignment by adjusting the PRA of either the transmitter or the receiver DPA.…”

Section: Introductionmentioning

confidence: 99%

Capacity improvement through selection diversity for dual‐polarized antenna systems

Wang

2020

Int J Communication

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SummaryIn newly developed wireless communication systems, the millimeter wavelength frequency band and massive‐MIMO‐based beamforming technology provide a channel environment that supports multiplexing transmission using dual‐polarization antenna (DPA). In such a channel environment, a DPA system can transmit two independent data streams using the two orthogonal polarizations. However, random rotation angle (PRA) mismatch between the transmitting and receiving DPAs causes interference in cross‐polarization antenna, which can degrade the DPA system capacity. To solve the PRA mismatch problem, selection diversity is utilized in this paper, and the capacity gain and PRA mismatch reduction achieved by the selection diversity are mathematically analyzed. Previously, performance analyses have not been conducted on the selection diversity in DPA systems considering the random PRA mismatch in the conventional studies. Through the result of this study, the improved capacity and PRA mismatch reduction of the DPA system can be accurately calculated as the number of mobile terminals (MTs) available increases. Based on this analysis, five practical scheduling schemes corresponding to various types of channel feedbacks are proposed, and their performance is evaluated.

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Polarization Diversity and Adaptive Beamsteering for 5G Reflectarrays: A Review

Cited by 51 publications

References 97 publications

A Novel Asymmetric Patch Reflectarray Antenna with Ground Ring Slots for 5G Communication Systems

A Novel Asymmetric Patch Reflectarray Antenna with Ground Ring Slots for 5G Communication Systems

Planar Sub-Millimeter-Wave Array Antenna With Enhanced Gain and Reduced Sidelobes for 5G Broadcast Applications

Capacity improvement through selection diversity for dual‐polarized antenna systems

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