Results 181 to 190 of about 64,211 (268)

Janus Nanostructures Enabled by Confined Interfacial Engineering for Enhanced Electromagnetic Response

Advanced Science, EarlyView.
Confined diffusion‐driven interfacial engineering enables the nanoscale construction of asymmetric SiC@C Janus hollow nanoshells, achieving synergistic impedance matching and electromagnetic energy dissipation for highly efficient broadband microwave absorption at ultralow filler loading.
Limeng Song, Cheng Song, Feiyue Hu, Yongqiang Chen, Linan Wang, Huagao Wang, Li Guan, Duo Chen, Kesong Yu, Yabo Huang, Shihao Jia, Xin Xu, Qiancheng Gao, Dou Zhang, Hailong Wang, Haijiao Xie, Rui Zhang, Bingbing Fan   +17 more
wiley   +1 more source

Imaging cell phone radiation in tissue mimics with hyperpolarized low-field MRI. [PDF]

Sci Adv
Ogier SE, Russek SE, Martinez JA, Betz KM, Stupic KF, Watterson WJ, Simons MT, Holloway CL, Biller JR, Srivastava DJ, Teixeira RPAG, Keenan KE.   +11 more
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

Optoelectronic microwave oscillator based on integrated Si-ITO plasmonic modulator. [PDF]

Sci Rep
Smirnov AS, Kosolobov SS, Zemtsova AK, Zemtsov DS, Garbuzov KN, Pshenichnyuk IA, Tatsenko IY, Nikitin AA, Ustinov AB, Bortsov AA, Drachev VP.   +10 more
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

A pulsed optoelectronic microwave source with high power and frequency tunability. [PDF]

Nat Commun
Niu X, Wang L, Zhang B, Ling J, Zhang Q, Yi M, Yao J, Hou J, Yang H, Xu X, Jiang B, He J, Liu J, Zhang J, Jing H, Xun T, Zhang J.   +16 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

Self-Referenced and Wide-Range Tunable Microwave Frequency Measurement Using Period-One Oscillation and Spectral Gating. [PDF]

Sensors (Basel)
Yang Z, Liu Z, Dong W.
europepmc   +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

Microwave-induced energy activation: Mechanisms and material advances. [PDF]

iScience
Han C, Wu F, Lin Q, Zhao F, Xu S.
europepmc   +1 more source