A Review of High Gain and High Efficiency Reflectarrays for 5G Communications

Dahri, M. Hashim; Abbasi, Muhammad Inam; Jamaluddin, Mohd Haizal; Kamarudin, M. R.

doi:10.1109/access.2017.2786862

Cited by 54 publications

(30 citation statements)

References 70 publications

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“…The design of antennas for the allocated mm-wave for 5G has received huge importance in recent years [5]. Due to the high propagation and atmospheric losses in mm-waves, highgain antennas are required for 5G systems.…”

Section: Introductionmentioning

confidence: 99%

Metasurface-Based Single-Layer Wideband Circularly Polarized MIMO Antenna for 5G Millimeter-Wave Systems

et al. 2020

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This paper presents a metasurface-based single-layer low-profile circularly polarized (CP) antenna with the wideband operation and its multiple-input multiple-output (MIMO) configuration for fifth-generation (5G) communication systems. The antenna consists of a truncated corner patch and a metasurface (MS) of a 2 × 2 periodic square metallic plates. The distinguishing feature of this design is that all the radiating elements (radiator and MS) are printed on the single-layer of the dielectric substrate, which ensures the low-profile and low-cost features of the antenna while maintaining high gain and wideband characteristics. The wideband CP radiations are realized by exploiting surface-waves along the MS and its radiation mechanism is explained in detail. The single-layer antenna geometry has an overall compact size of 1.0λ0 × 1.0λ0 × 0.04λ0. Simulated and measured results show that the single-layer metasurface antenna has a wide 10 dB impedance bandwidth of 23.4 % (24.5-31 GHz) (23.4 %) and overlapping 3-dB axial ratio bandwidth of 16.8 % (25-29.6 GHz). The antenna also offers stable radiation patterns with a high radiation efficiency (>95%) and a flat gain of 11 dBic. Moreover, a 4-port (2 × 2) MIMO antenna is designed using the proposed design by placing each element perpendicular to each other. Without a dedicated decoupling structure, the MIMO antenna shows an excellent diversity performance in terms of isolation between antenna elements, envelope correlation coefficient, and channel capacity loss. Most importantly, the operational bandwidth of the antenna covers the millimeter-wave (mm-wave) band (25-29.5 GHz) assigned for 5G communication. These features of the proposed antenna system make it a suitable candidate for 5G smart devices and sensors.

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Section: Introductionmentioning

confidence: 99%

Metasurface-Based Single-Layer Wideband Circularly Polarized MIMO Antenna for 5G Millimeter-Wave Systems

et al. 2020

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“…The selection of an antenna at the base station mainly depends on the range of its acquired parameters that are needed for 5G communication [3]. 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].…”

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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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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“…As a result of the above‐mentioned advantages, fruitful reflectarray antennas are studied in recent years, such as beam‐scanning reflectarrays, multibeam reflectarrays, multiband reflectarrays, dual‐reflectarrays, resonator reflectarrays, conformal reflectarrays, and so on . Furthermore, reflectarrays are the one with a very high prospective for the fifth generation (5G) wireless communication system . In the 5G communication system, wideband behavior is required due to the pursuit of higher data rates, which is supported by the fast switching mechanisms.…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4][5][6][7][8][9] Furthermore, reflectarrays are the one with a very high prospective for the fifth generation (5G) wireless communication system. 10,11 In the 5G communication system, wideband behavior is required due to the pursuit of higher data rates, which is supported by the fast switching mechanisms. However, the applications of reflectarray antennas are limited due to the narrow bandwidth, which is mainly caused by the narrow bandwidth of element and large spatial phase delay.…”

Section: Introductionmentioning

confidence: 99%

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

Zhao

Wang

et al. 2019

Micro & Optical Tech Letters

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This letter presents a novel log‐periodic reflectarray element based on a single‐layer substrate. To achieve a full 360° phase coverage with a gentle slope, the corresponding parameters are optimized. For the sake of minimizing the effects of the feed blockage, the proposed element is used to construct a Ka‐band offset‐fed reflectarray antenna whose aperture size is 81 mm × 81 mm. Moreover, a corresponding prototype is also fabricated to test the actual radiation performance. The measured maximum gain is 26.65 dB at the center frequency of 33 GHz with the aperture efficiency of 46.34%. Moreover, the measured peak sidelobe for E‐plane is lower than −17.87 dB and 10.69% of 1‐dB gain bandwidth is also achieved, which demonstrates that the proposed antenna features the characteristic of broadband. The simulated and measured results show that the proposed antenna features good radiation performance, which has the potential for 5G communication systems.

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A Review of High Gain and High Efficiency Reflectarrays for 5G Communications

Cited by 54 publications

References 70 publications

Metasurface-Based Single-Layer Wideband Circularly Polarized MIMO Antenna for 5G Millimeter-Wave Systems

Metasurface-Based Single-Layer Wideband Circularly Polarized MIMO Antenna for 5G Millimeter-Wave Systems

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

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

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