Design of True Time Delay Millimeter Wave Beamformers for 5G Multibeam Phased Arrays
Dimitrios I. Lialios,Nikolaos Ntetsikas,Konstantinos D. Paschaloudis,Constantinos L. Zekios,Stavros V. Georgakopoulos,George A. Kyriacou +5 more
Reads0
Chats0
TLDR
Three different analog beamforming techniques for the frequency range of 27–33 GHz are presented and a novel compact multilayer Blass matrix is proposed, and a three-layer true-time-delay tree topology inspired by microwave photonics is presented.Abstract:
Millimeter wave (mm-Wave) technology is likely the key enabler of 5G and early 6G wireless systems. The high throughput, high capacity, and low latency that can be achieved, when mm-Waves are utilized, makes them the most promising backhaul as well as fronthaul solutions for the communication between small cells and base stations or between base stations and the gateway. Depending on the channel properties different communication systems (e.g., beamforming and MIMO) can accordingly offer the best solution. In this work, our goal is to design millimeter wave beamformers for switched beam phased arrays as hybrid beamforming stages. Specifically, three different analog beamforming techniques for the frequency range of 27–33 GHz are presented. First, a novel compact multilayer Blass matrix is proposed. Second, a modified dummy-ports free, highly efficient Rotman lens is introduced. Finally, a three-layer true-time-delay tree topology inspired by microwave photonics is presented.read more
Citations
More filters
Journal ArticleDOI
Circuit Type Multiple Beamforming Networks for Antenna Arrays in 5G and 6G Terrestrial and Non-Terrestrial Networks
TL;DR: The principle of operation, design, and implementation of different circuit type multiple BFNs are discussed and compared, and the suitability of these sub-systems for 5 G and B5G antenna arrays is reviewed.
Journal ArticleDOI
A 28-GHz Switched-Beam Antenna with Integrated Butler Matrix and Switch for 5G Applications.
TL;DR: In this paper, a 28 GHz Butler matrix based switched-beam antenna for 5G wireless applications is presented, which integrates a 1 × 4 microstrip antenna, a 4 × 4 Butler matrix, and a single-pole four-throw (SP4T) absorptive switch in a single planar printed circuit board and is housed in a metal enclosure.
Journal ArticleDOI
Photonic Beamforming for 5G and Beyond: A Review of True Time Delay Devices Enabling Ultra-Wideband Beamforming for mmWave Communications
TL;DR: In this paper , a comprehensive review of the photonic true time delay units for application in beamforming of next generations of wireless communications is presented, along with the prospects and progress of several photonic techniques.
Journal ArticleDOI
A Noniterative Radix-8 CORDIC Algorithm with Low Latency and High Efficiency
Wenming Tang,Feng Xu +1 more
TL;DR: An efficient, noniterative Radix-8 (NR-8) coordinate rotation digital computer (CORDIC) algorithm that takes advantages over other newly improved CORDIC algorithms and requires less than half of the clock latency, even for a 23-bit precision output, could provide a potential application in real-time systems such as radar digital beamforming.
Journal ArticleDOI
Hybrid Direction of Arrival Precoding for Multiple Unmanned Aerial Vehicles Aided Non-Orthogonal Multiple Access in 6G Networks
TL;DR: Numerical results point out the better behavior obtained by the use of UAV relays and the MUSIC DoA estimation in the Hybrid mmWave beamforming in terms of achievable sum-rate in comparison to UL NOMA connections without the help of a UAV network.
References
More filters
Journal ArticleDOI
Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!
Theodore S. Rappaport,Shu Sun,Rimma Mayzus,Hang Zhao,Yaniv Azar,Kevin H. Wang,George N. Wong,Jocelyn K. Schulz,Mathew K. Samimi,Felix Gutierrez +9 more
TL;DR: The motivation for new mm-wave cellular systems, methodology, and hardware for measurements are presented and a variety of measurement results are offered that show 28 and 38 GHz frequencies can be used when employing steerable directional antennas at base stations and mobile devices.
Journal Article
Microwave engineering
TL;DR: A brief history of microwave engineering is given in this paper, where the impact of computer-aided design and monolithic microwave integrated circuits on microwave design is examined, along with suggestions for related studies that would be useful to the microwave engineer.
Journal ArticleDOI
Millimeter-wave beamforming as an enabling technology for 5G cellular communications: theoretical feasibility and prototype results
Won-Il Roh,Ji-Yun Seol,Jeong-Ho Park,Byunghwan Lee,Jae-kon Lee,Yung-soo Kim,Jae-Weon Cho,Kyungwhoon Cheun,Farshid Aryanfar +8 more
TL;DR: This article presents recent results from channel measurement campaigns and the development of advanced algorithms and a prototype, which clearly demonstrate that the mmWave band may indeed be a worthy candidate for next generation (5G) cellular systems.
Book
Phased Array Antenna Handbook
TL;DR: Details of Element Pattern and Mutual Impedance Effects for Phased Arrays and Special Array Feeds for Limited Field of View and Wideband Arrays are presented.
Journal ArticleDOI
An N-Way Hybrid Power Divider
TL;DR: In this article, a circularly symmetric power divider is described which splits a signal into n equiphase equiamplitude parts where n can be odd or even.
Related Papers (5)
Optimal Beam Pattern Design for Hybrid Beamforming in Millimeter Wave Communications
Wei Wang,Wei Zhang,Jun Wu +2 more
Iterative Joint Beamforming Training with Constant-Amplitude Phased Arrays in Millimeter-Wave Communications
Zhenyu Xiao,Lin Bai,Jinho Choi +2 more