Results 131 to 140 of about 41,325 (264)

An Antenna Array for the Galileo System with Beamforming Capabilities [PDF]

, 2006
Future navigation services provided by the upcoming Galileo satellite system will require corresponding improvements on the navigation receiving systems. The first part of any navigation receiving system is the antenna or antenna terminal.
Dreher, Achim, Schittler Neves, Eduardo
core  

Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen, Xiaoyi Wang, Guo‐Min Yang, Ya‐Qiu Jin   +3 more
wiley   +1 more source

Tracking a Rangeland Fire With Infrasound Arrays

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract We present the first infrasound analyses of a rangeland fire and demonstrate infrasound's potential in monitoring wildland fires. We recorded a prescribed fire in sagebrush steppe in cool, moist conditions, using eight infrasound arrays of diverse size (3–44 sensors, 10–200 m width) and distance (0–20 km), including four arrays inside the burn
Jacob F. Anderson, Madeline A. Hunt, Jeffrey B. Johnson, Kara M. Yedinak   +3 more
wiley   +1 more source

A novel deconvolution beamforming algorithm for virtual phased arrays [PDF]

, 2013
Beamforming techniques using phased microphone arrays are one of the most common tools for localizing and quantifying noise sources. However, the use of such devices can result in a series of well-known disadvantages regarding, for instance, their very ...
Fernandez Comesana, Daniel, Fernandez Grande, Efren, Holland, Keith R., Tiana Roig, Elisabet   +3 more
core  

An Active Beam‐Reconfigurable Retrodirective Array

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
The proposed beam‐reconfigurable retrodirective array not only enables retroreflection toward the signal source but also achieves flexible beam steering via a tunable reflection plate, offering a viable solution for real‐time multipoint communication and multitarget wireless power transfer.
Wen Yue Wei, Yan Shi, Li Jing Yang, Jun Wei Wu, Qiang Feng, Long Li   +5 more
wiley   +1 more source

A review on underwater beamforming: Techniques, challenges, and future directions

Journal of Ocean Engineering and Science
This paper comprehensively reviews recent advancements in Underwater Beamforming (UWB) systems, highlighting its pivotal role in underwater communication, sensing, and environmental monitoring.
Ruba Zaheer, Quoc Viet Phung, Iftekhar Ahmad, Asma Aziz, Daryoush Habibi, Yue Rong, Walid K Hasan   +6 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

KANsformer for Scalable Beamforming

IEEE Transactions on Vehicular Technology
This paper proposes an unsupervised deep-learning (DL) approach by integrating transformer and Kolmogorov-Arnold networks (KAN) termed KANsformer to realize scalable beamforming for mobile communication systems. Specifically, we consider a classic multi-input-single-output energy efficiency maximization problem subject to the total power budget.
Xinke Xie, Yang Lu 0008, Chong-Yung Chi, Wei Chen 0016, Bo Ai 0001, Dusit Niyato   +5 more
openaire   +2 more sources

Near‐Field Coupling Suppression of Dual Circularly Polarized Antennas via Epsilon‐Near‐Zero Metamaterial

Advanced Photonics Research, Volume 7, Issue 7, July 2026.
An ENZ metamaterial slab enables near‐field coupling suppression in dual circularly polarized stacked patch antennas while preserving radiation performance. The near‐zero‐index environment attenuates the transmission of parasitic coupling components between adjacent radiators, distinct from conventional current‐cancelation or port‐compensation ...
Yi Zhao, Lu Song, Zanyang Wang, Liqiao Jing, Dashuang Liao, Jiangang Liang   +5 more
wiley   +1 more source

Iterative Soft Interference Cancellation Aided Minimum Bit Error Rate Uplink Receiver Beamforming [PDF]

, 2006
Iterative multiuser receivers constitute an effective solution for transmission over Multiple Access Interference (MAI) infested channels, when invoking a combined multiuser detector and channel decoder.
Tan, S., Xu, L., Hanzo, L., Chen, S.
core