Wideband high aperture efficiency antennas with beam switching for
            <scp>mmWave 5G</scp>
            base stations

Muzaffar, Khalid; Magray, M. Idrees; Karthikeya, G. S.; Koul, Shiban K.

doi:10.1002/mmce.22254

Cited by 6 publications

(7 citation statements)

References 17 publications

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“…A hole is etched from substrate and CPW ground plane for the insertion of the screw of end launch connector used for testing purpose. The end launch connector has been used to demonstrate the concept due its better performance and ease of usage at 28 GHz mm-wave designs [23][24][25][26][27].…”

Section: Geometrical Configurationmentioning

confidence: 99%

Helix Inspired 28 GHz Broadband Antenna with End-Fire Radiation Pattern

Zahra¹,

Awan²,

Hussain³

et al. 2022

Computers, Materials &Amp; Continua

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This paper presents the design and characterization of a via free planar single turn helix for 28 GHz broadband applications. The proposed antenna is designed using ROGERS RO4003 material, having a simple structure and end-fire radiation pattern. The antenna comprises of a compact dimension of 1.36 λ 0 × 0.9 λ 0 with a thickness of 0.0189 λ 0 (where λ 0 is the free-space wavelength at the central frequency of 28 GHz). Parametric study has been carried out to investigate the impact of key design parameters and to achieve an optimum design. Results show a good agreement between the simulated and measured results. A single turn helical inspired antenna covers −10 dB impedance bandwidth of 26.25-30.14 GHz having a peak gain of 5.83 dB and radiation efficiency up to 85%. Moreover, linear array configurations with 2 and 4 elements have been analyzed for applications with higher gain and space constraints. Presented array configurations are suitable for applications having space constraints in one dimension. Results show that peak gain up to 8.2 dB and 11.1 dB can be achieved with 2 and 4 elements, respectively. Due to its simple planar and via free structure, this antenna is suitable for 5G communications and for sensing, imaging, IoT and tracking applications at 28 GHz band spectrum.

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Section: Geometrical Configurationmentioning

confidence: 99%

Helix Inspired 28 GHz Broadband Antenna with End-Fire Radiation Pattern

Zahra¹,

Awan²,

Hussain³

et al. 2022

Computers, Materials &Amp; Continua

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show abstract

“…A thin wire construction with negative permittivity and split ring resonators with negative permeability can be used to create double negative characteristics at the same time. Metamaterials are responsible for improving antenna performance such as high efficiency, low return loss, wide bandwidth, and high gain 70‐72 . When metamaterials placed in front of the patch, it works as a lens.…”

Section: Efficiency Enhancement Techniquesmentioning

confidence: 99%

“…Metamaterials are responsible for improving antenna performance such as high efficiency, low return loss, wide bandwidth, and high gain. [70][71][72] When metamaterials placed in front of the patch, it works as a lens. Because it reduces the resonant frequency, metamaterials may also be used to accomplish size miniaturization.…”

Section: Metamaterials Based Techniquesmentioning

confidence: 99%

“…Metamaterial based patch antenna 44,[70][71][72] Improvement in gain, wide bandwidth, ease of integration with other components Difficult to design, difficult to decide the position of unit cell SIW (substrate integrated waveguide) 22,26 Good bandwidth, moderate gain, low side lobe levels, low cross polar levels, lower losses, small cost, high power coupling…”

Section: Complexity In Analysismentioning

confidence: 99%

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Efficiency enhancement techniques of microwave and millimeter‐wave antennas for 5G communication: A survey

Nahar

Rawat

2022

Trans Emerging Tel Tech

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Efficiency is a critical antenna parameter that describes how well an antenna emits and accepts electromagnetic signals. When an antenna has poor efficiency, the input power is only partially radiated and is primarily wasted due to internal losses such as conduction, dielectric, mismatching, and several other losses within the antenna. In order to enhance signal quality, a communication system requires an antenna with high efficiency and gain. The fifth-generation wireless system will use millimeter wave spectrum along with sub 1 GHz and sub 6 GHz bands to fulfill wide bandwidth, ultra-high-speed, and low latency requirements of 5G communication. Compact low-profile antenna with high radiation efficiency, high gain, and wideband characteristics are required to support bandwidth requirements of 5G and mitigate the signal degradation due to high link losses caused by environmental absorptions at the millimeter-wave (mm-wave) spectrum. Compact planar antennas have become an important part of modern wireless communication equipment, but these antennas are associated with many issues like low efficiency, poor gain, small radiation resistance, and high cross-polarization, which is due to the increased conductor and dielectric losses, surface wave losses and so forth. Various techniques need to be employed for the improvement of the efficiency of the antenna, which results in high gain low loss antenna characteristics. This article presents the survey of various efficiency enhancement techniques for 5G antennas and a review of structures that provides good radiation efficiency for 5G communications.

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“…End‐fire realized gain varies between 6 and 7.2 dBi that indicates high gain for the available shared aperture. Since the presented design acts only as a proof of concept, a much higher gain can be attained using different techniques like dielectric loading 16 and metamaterial insertion 17 that can be easily implemented in the proposed antenna without any significant deterioration in performance characteristics. High end‐fire gain is obtained that is mainly due to electrically large vertically corrugated ground plane.…”

Section: Uniplanar Shared Radiator Based Acs‐fed Two‐port Antenna Designmentioning

confidence: 99%

A thin shared radiator based ACS‐fed orthogonal pattern diversity antenna with physical tilt for mmWave 5G access points

Magray

Hsu

Tarng

2022

Int J RF Mic Comp-Aid Eng

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A low profile and compact two‐port antenna is proposed for mmWave 5G access point applications. Since the overall space inside a typical mmWave 5G access point is limited, a small form factor based antenna module is proposed. The two‐port antenna shares a common radiator that miniaturizes the overall antenna module. The proposed antenna comprises of single‐layered asymmetric coplanar strip (ACS)‐fed shared radiator with wide operating bandwidth ranging from 25 to 31 GHz that accounts for fractional bandwidth of 21.4%. The two‐port antenna elements are oriented at right angles to each other for obtaining orthogonal pattern diversity (OPD) thereby obtaining wide angular coverage in the E‐plane. Vertical linear corrugations with varying lengths are incorporated for decreasing mutual coupling between these two antenna elements and producing a uniform high gain end‐fire radiation pattern. Isolation of around 4 dB is enhanced by insertion of these vertical corrugations. The proposed antenna attains peak gain of 7.2 dBi with high pattern integrity over the entire operational frequency band. The presented OPD antenna occupies overall area of 74.75 mm2 which is minimal. Moreover, implementation of the proposed antenna inside a typical mmWave 5G access point is also demonstrated. Simulation and measured results are presented with adequate technical explanation.

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Wideband high aperture efficiency antennas with beam switching for mmWave 5G base stations

Cited by 6 publications

References 17 publications

Helix Inspired 28 GHz Broadband Antenna with End-Fire Radiation Pattern

Helix Inspired 28 GHz Broadband Antenna with End-Fire Radiation Pattern

Efficiency enhancement techniques of microwave and millimeter‐wave antennas for 5G communication: A survey

A thin shared radiator based ACS‐fed orthogonal pattern diversity antenna with physical tilt for mmWave 5G access points

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