Energy-Efficient 5G Phased Arrays Incorporating Vertically Polarized Endfire Planar Folded Slot Antenna for mmWave Mobile Terminals

Park, Junho; Seong, Heechang; Whang, Yong Nam; Hong, Wonbin

doi:10.1109/tap.2019.2930100

Cited by 80 publications

(28 citation statements)

References 31 publications

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“…Such dualpolarized antenna array modules for massive MIMO working in the Ka-band have also been reported by industrial companies, including Nokia Bell Labs [37], Ericsson [123], and NXP Semiconductors [124]. More recently, based on a multilayer vertical interconnection structure, a vertically-polarized antenna array module was demonstrated where the array was flip-chip mounted on the top layer of the routing board [125].…”

Section: ) Aip and Antenna Modulesmentioning

confidence: 95%

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

et al. 2021

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Section: ) Aip and Antenna Modulesmentioning

confidence: 95%

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

et al. 2021

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“…The Hanning window [31] is quite similar with hamming window and provides a modified array coefficients which is written in equation (18).…”

Section: ) Hanning Amplitude Taperingmentioning

confidence: 99%

“…Convex optimization and a deterministic approach are proposed as hybrid methods for sparse concentric ring arrays which can optimize both SLL and first null beamwidth(FNBW) [17]. A novel vertically-polarized (V-pol) endfire planar folded slot antenna is proposed to incorporate an energy-efficient 5G phased array for user devices is presented in [18]. The performance is analyzed for both circular and concentric circular antenna arrays applying the DOA estimation technique in the presence of high and low noisy environments [19][20].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Linearly arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique.

Rahaman

Reza

Hossain

et al. 2021

Preprint

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In this research, a novel antenna array named Linearly arranged Concentric Circular Antenna Array (LCCAA) is proposed concerning lower beamwidth, lower sidelobe level, sharp ability to detect the false signal, and impressive SINR performance. The performance of the proposed LCCAA beamformer is compared with geometrically identical existing beamformers using the conventional technique where the LCCAA beamformer shows the lowest beamwidth and sidelobe level(SLL) of 12.50°and -15.17 dB in equal element accordingly. However, the performance gets degraded due to looking direction error, and robust techniques- fixed diagonal loading (FDL), optimal diagonal loading (ODL), and variable diagonal loading (VDL) are applied to all the potential arrays to minimize this problem. Furthermore, the LCCAA beamformer is further simulated to reduce the sidelobe applying tapering techniques where the hamming window shows the best performance having 17.097 dB less sidelobe level compared to the uniform window. The proposed structure is also analyzed under a robust tapered (VDL-hamming) method which reduces around 69.92 dB and 48.39 dB more sidelobe level compared to conventional and robust techniques. Analyzing all the performances, it is clear that the proposed LCCAA beamformer is superior and provides the best performance with the proposed robust tapered (VDL-hamming) technique.

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“…The work presented in [15] allows for linear and CPs; however, it requires four times as many elements in an array, has a smaller impedance matching bandwidth and smaller gain per element. While larger impedance matching bandwidths and gains are demonstrated in [14,19], and smaller dimensions are demonstrated in [35,36], these arrays lack CP and would thus exhibit polarisation loss during most cases of operation. The closest performing structures are those presented in [34,37].…”

Section: Four-element Arrays Radiation Patternsmentioning

confidence: 99%

Circularly‐polarised end‐fire antenna and arrays for 5G millimetre‐wave beam‐steering systems

Al-Amoodi

Honari

Mirzavand

et al. 2020

IET Microwaves, Antennas & Propagation

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This study presents a circularly‐polarised substrate‐integrated waveguide end‐fire antenna and four‐antenna arrays for 5G beam‐steering mobile devices at 28 GHz. Polarisation is achieved through implementation of a substrate‐integrated waveguide notched‐septum polariser. It is then loaded with a dielectric lens to improve gain, axial ratio bandwidth, and circular polarisation (CP) purity. To suppress the mutual coupling between array elements, vias are extended on either side of the lens. It also improves the single‐element axial ratio and front‐to‐back ratio. The antenna's performance is found to be resilient to typical manufacturing tolerances for the lens and via extensions. The element and arrays are manufactured and measured. The prototypes demonstrated an impedance bandwidth of 11.4% with a maximum array gain of 10.5 dBi and a steering range of up to ±35° (with reduced performance when steered to ±45°). Within this range, the antenna array demonstrates a gain variation of up to 3 dB and very good CP purity within the radiation half‐power beamwidths (HPBWs). A wide single‐element elevation HPBW of 95° is also demonstrated. Given its performance and ease of manufacture in a printed circuit board process, the proposed antenna could be a strong candidate for 5G millimetre‐wave beam‐steering systems.

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Energy-Efficient 5G Phased Arrays Incorporating Vertically Polarized Endfire Planar Folded Slot Antenna for mmWave Mobile Terminals

Cited by 80 publications

References 31 publications

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

Performance Analysis of Linearly arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique.

Circularly‐polarised end‐fire antenna and arrays for 5G millimetre‐wave beam‐steering systems

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