Results 41 to 50 of about 1,796,322 (298)

Aerosol Jet Printing of Benzocyclobutene as a Thermally Stable, Low‐Loss Dielectric for Multilayer Microwave Electronics

Advanced Materials Technologies, EarlyView.
Multilayer aerosol jet printed components with a low‐loss, thermally stable dielectric are demonstrated using benzocyclobutene. Ink formulation and in‐line droplet evaporation control support high‐quality, versatile, and stable printing performance. A specialized measurement for low‐loss materials reveals promising microwave properties, which, combined
Md Ramjan Ali, Trent Moritz, Mohammad Tayeb Al Qaseer, Ethan B. Secor   +3 more
wiley   +1 more source

When IEEE 802.11 and 5G Meet Time-Sensitive Networking

IEEE Open Journal of the Industrial Electronics Society, 2022
Many emerging applications require a higher level of flexibility, modularity, and efficiency but are dependent on advancements in communication infrastructure and distributed computing.
Mahin K. Atiq, Raheeb Muzaffar, Oscar Seijo, INaki Val, Hans-Peter Bernhard   +4 more
doaj   +1 more source

Electronic tracking for wireless infrared communications

, 2022
S.989-999A high-speed wireless system (>or=100 Mb/s) for indoor infrared (IR) communications via the line of sight is described and feasibility is shown in an experimental demonstrator.
Krüger, U., Haustein, T., Forck, A., Jungnickel, V., Helmolt, C. von, Pohl, V.   +5 more
core   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

Neural Network-Based Box-Oriented Framework for Behavioral Modeling and Digital Predistortion of Power Amplifiers

IEEE Transactions on Machine Learning in Communications and Networking
This article presents a new box-oriented framework and training strategy that integrates conventional models with neural networks (NNs) for accurate power amplifier (PA) behavioral modeling and digital predistortion (DPD).
Lesthuruge Silva, S. S. Krishna Chaitanya Bulusu, Nandana Rajatheva, Marko E. Leinonen, Nuutti Tervo   +4 more
doaj   +1 more source

Performance of a low-power wide-area network based on LoRa technology: Doppler robustness, scalability, and coverage

International Journal of Distributed Sensor Networks, 2017
The article provides an analysis and reports experimental validation of the various performance metrics of the LoRa low-power wide-area network technology.
Juha Petäjäjärvi, Konstantin Mikhaylov, Marko Pettissalo, Janne Janhunen, Jari Iinatti   +4 more
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Fundamental Limits of Target Parameter Estimation in OFDM-Based 3D NTN ISAC Systems

IEEE Open Journal of the Communications Society
This work investigates the fundamental performance bound of three-dimensional (3D) target localization and velocity estimation in monostatic orthogonal frequency-division multiplexing (OFDM)-based ISAC systems equipped with uniform rectangular arrays ...
Luca Arcangeloni, Enrico Testi, Lorenzo Pucci, Andrea Giorgetti   +3 more
doaj   +1 more source

Energy Management of Solar-powered Aircraft-based High Altitude Platforms for Wireless Communications [PDF]

, 2020
With the increasing interest in wireless communications from solar-powered aircraft-based high altitude platforms (HAPs), it is imperative to assess the feasibility of their deployment in different locations with the constraints on energy consumption and
Paul Daniel Mitchell, Mitchell, Paul Daniel, Muhammad Danial Zakaria, Nils Morozs, Arum, Steve, Zakaria, Muhammad, Steve Chukwuebuka Arum, David Grace, Grace, David, Morozs, Nils   +9 more
core   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source