Compact multi‐layer microstrip Rotman lens design using coupling slots to support millimetre wave devices

Dai, Toan K. Vo; Nguyen, Tuan; Kıłıc, Özlem

doi:10.1049/iet-map.2017.0817

Cited by 9 publications

(3 citation statements)

References 27 publications

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“…Various antennas for 5G applications have been proposed [5], [6], [7], [8], [9], [10], [11]. A dual-band planar 5G mmWave antenna is proposed in [5].…”

Section: A Related Workmentioning

confidence: 99%

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A Compact Filter and Dipole Antenna With Its Phased Array Filtenna and ADMM-BO Learning for Use-Case Analog/Hybrid Beamforming in 5G mmWave Communications

et al. 2023

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In this article, a 5G compact millimeter-wave dipole antenna with high gain and its array filter-antenna is proposed, following a theoretical discussion is proposed. To increase the gain and focused mainbeam, the double dipole is inserted at the ground plane. The results show that the proposed antenna has an impedance band-width (IBW) of around 7.14% and 6.7 dBi gain at 28 GHz. Next, a 5G filter is proposed with 4% IBW and lower than 0.6 dB gain insertion loss. A simple phase-shifter with 2-bit structure is designed in an 8-elemens array filter-antenna with 0.35λ spacing between the two elements which uses a meander-line to reduce mutual-coupling. First, the phased-array filtenna (filter-antenna) is fabricated to meet the analog beamforming challenge. The IBWs of the array filter antenna are approximately 3.5% with a high gain of 15 dBi. Second, a novel machine learning method is proposed as an alternating direction method of multipliers and Bayesian Optimization (ADMM-BO) is used in the hybrid beamforming for such partiallyconnected phased-array structures. Simulation and measurement results show that the proposed antenna and its array have a high gain in analog and hybrid beamforming and acceptable data rates. The data-rates of this array reach 100 Mb/s in SNRs higher than 10 dB. The amount for 0 dB SNR is 75 Mb/s. These results also indicate that the mainbeam shift is in the range of [−50 • , 50 • ] with a gain in variations of around 1.5 dB and side lobe level (SLL) of about −10 dB at 50 • .INDEX TERMS Microstrip patched antenna, 5G communication, mmwave filter, phase shifter, phased array filter-antenna, analog and hybrid beamforming, ADMM-BO.

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“…Various antennas for 5G applications have been proposed [5], [6], [7], [8], [9], [10], [11]. A dual-band planar 5G mmWave antenna is proposed in [5].…”

Section: A Related Workmentioning

confidence: 99%

“…Not covering European standards is a disadvantage of this apparatus. A compact mmWave multi-layer microstrip Rotman lens is proposed in [9]. One of the applications of the Rotman lens is beamforming.…”

Section: A Related Workmentioning

confidence: 99%

A Compact Filter and Dipole Antenna With Its Phased Array Filtenna and ADMM-BO Learning for Use-Case Analog/Hybrid Beamforming in 5G mmWave Communications

et al. 2023

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“…However, the reported measured return loss indicates a poor matching performance (S 11 < −8.5 dB). Another BFN with similar fabrication technology is presented in [16]. The basic idea is realizing a folded Rotman lens with the use of aperture coupling by multi-branch slots for the transition between the lens layers.…”

Section: Introductionmentioning

confidence: 99%

Optimum Wideband High Gain Analog Beamforming Network for 5G Applications

2019

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A broadband high-gain millimeter-wave (mmWave) array beamforming network (BFN) design, analysis, and implementation based on the Rotman lens antenna array feeding are presented. The BFN is intended for operation in the (26-40) GHz frequency band for a wide range of potential applications in the fifth generation (5G). The system is made on Rogers substrate, RO6010, to provide compatibility with standard planar low-cost processing techniques for millimeter-wave monolithic integrated circuit (MMIC). The measured results show the system capability of 80 • beam scanning for different angles at −39.7 • , −26.5 • , −13.3 • , 0 • , +13.3 • , +26.5 • , and +39.5 • at 28 GHz. With these features in addition to being compact size, low profile, and lightweight, this BFN is suitable for various millimeter-wave and 5G applications such as the advanced multi-in multi-out (MIMO) systems, remote sensing, and automotive radar.

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Overview of Advanced Antennas Concepts for 5G

Fathy

Kıłıc

2022

PoliTO Springer Series

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Compact multi‐layer microstrip Rotman lens design using coupling slots to support millimetre wave devices

Cited by 9 publications

References 27 publications

A Compact Filter and Dipole Antenna With Its Phased Array Filtenna and ADMM-BO Learning for Use-Case Analog/Hybrid Beamforming in 5G mmWave Communications

A Compact Filter and Dipole Antenna With Its Phased Array Filtenna and ADMM-BO Learning for Use-Case Analog/Hybrid Beamforming in 5G mmWave Communications

Optimum Wideband High Gain Analog Beamforming Network for 5G Applications

Overview of Advanced Antennas Concepts for 5G

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