Results 191 to 200 of about 109,932 (312)

Backward Energy Transmission in Resonant RF Energy Harvesters. [PDF]

Micromachines (Basel)
Szut J, Pauluk M, Piątek P.
europepmc   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

Advanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen, Lei Zhang, Yi Ning Zheng, Bing Bing Zhu, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Vincenzo Galdi, Tie Jun Cui   +8 more
wiley   +1 more source

Achieving Ultra-Reliable Low Latency Communication in 5G and Beyond. [PDF]

Sensors (Basel)
Bajracharya R, Shrestha R.
europepmc   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Eye-Tracking-Driven Programming Metasurface System for Adaptive Beam Focusing and Polarization-Agile Communication. [PDF]

Research (Wash D C)
Zhang S, Zhu R, Chu Z, Ding C, Sui S, Dang S, Qu S, Qu J, Jia Y, Wang J.   +9 more
europepmc   +1 more source

A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS

Advanced Electronic Materials, EarlyView.
A general and efficient framework is proposed for the rapid design of high‐performance reconfigurable intelligent surfaces (RISs). This framework integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs.
Jun Wei Zhang, Zheng Xing Wang, Wanwan Cao, Zhen Jie Qi, Li Jie Wu, Han Qing Yang, Qun Yan Zhou, Si Ran Wang, Hui Dong Li, Jun Yan Dai, Jiang Luo, Jun Wei Wu, Jia Nan Zhang, Zhen Zhang, Qiang Cheng   +14 more
wiley   +1 more source

Soft actor critic-based performance optimization for IRS-aided cognitive radio systems. [PDF]

Sci Rep
Ghallab R, Abdrabo A, Elashry I.
europepmc   +1 more source

Investigation of feedline of equiangular spiral antenna for UWB radio wave communication

Proceedings of JIEP Annual Meeting, 2005
Toriyama, Kuniaki, Koshiji, Kohji
openaire   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

A compact triple wideband mimo antenna for microwave, ku, and mm-wave band applications of 5g wireless communication. [PDF]

PLoS One
Hameed AN, Al-Bawri SS, Rahman MM, Larguech S, Hasan MM, Alawad MA, Islam MS, Islam MT.   +7 more
europepmc   +1 more source