Results 271 to 280 of about 621,396 (302)

Exchange Length Tailored Magnetic Resonance for Broadband Absorption in FeCo‐Based Alloys

Advanced Science, EarlyView.
To break the high‐frequency magnetic loss bottleneck in soft magnetic alloys, a magnetic exchange length (Lex)‐guided strategy is proposed. Cu doping increases Lex and intergranular coupling, which effectively reduces magnetic anisotropy and pushes the exchange resonance to 12.0 GHz.
Xiaoyang Liu, Yingli Zhu, Shuangxin Zhang, Gangtao Luo, Mengke Qiao, Jiang Wu, Xiangcheng Li   +6 more
wiley   +1 more source

Rate Optimization of Intelligent Reflecting Surface-Assisted Coal Mine Wireless Communication Systems. [PDF]

Entropy (Basel)
Liu Y, Yang Z, Wang B, Xu Y.
europepmc   +1 more source

Transmission and feedback strategies for energy harvesting wireless communication systems

, 2015
Rajeev Gangula
openalex   +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

High-speed FSO-5G wireless communication system with enhanced loss compensation using high-power EDFA. [PDF]

Sci Rep
Hayle ST, Hsu HY, Wang CP, Lu HH, Lu JM, Hsu WW, Chung YC, Bai YY, Okram K.   +8 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 180 nm CMOS dual-mode LNA with current reuse and double-resonance load for 2.4 GHz and 3.1-10.6 GHz wireless communication. [PDF]

Sci Rep
Snehitha Reddy T, Nath V.
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

Crypto-coding technique based on polar code and secret key generated from wireless channel characteristics for wireless communication systems. [PDF]

PLoS One
Van Linh D, Van Yem V, Thi Phuong Thao H.   +2 more
europepmc   +1 more source

Multichannel highly secure wireless communication system with information camouflage capability. [PDF]

Sci Adv
Wang HL, Ma HF, Zhang YK, Zhang TY, Sun S, Chen YT, Cui TJ.   +6 more
europepmc   +1 more source