Results 1 to 10 of about 60,794 (118)

A Review of Gel-Based Materials for Electromagnetic Devices. [PDF]

Gels
Gel-based materials are emerging as lightweight, mechanically compliant, and electromagnetically tunable platforms for next-generation antennas, electromagnetic interference (EMI) shields, microwave absorbers, and radomes.
Huang L, Xu H, Zhang Y, Zhang H.
europepmc   +2 more sources

Machine Learning for Design Optimization of Electromagnetic Devices: Recent Developments and Future Directions

Applied Sciences (Switzerland), 2021
This paper reviews the recent developments of design optimization methods for electromagnetic devices, with a focus on machine learning methods. First, the recent advances in multi-objective, multidisciplinary, multilevel, topology, fuzzy, and robust ...
Gerd Bramerdorfer, Gang Lei, Xiaodong Sun   +2 more
exaly   +3 more sources

Jerusalem cross geometry magnetic substrate absorbers for low-frequency broadband applications

AIP Advances, 2021
In this work, an ultra-thin microwave absorber with a Jerusalem cross (JC) resonator exhibiting a broad low-frequency absorption bandwidth was successfully designed and fabricated.
Qian Liu, Difei Liang, Xin Wang, Tiancheng Han, Haipeng Lu, Jianliang Xie   +5 more
doaj   +1 more source

On the Impact of Electron Leakage on the Efficiency Droop for AlGaN Based Deep Ultraviolet Light Emitting Diodes

IEEE Photonics Journal, 2020
In this work, we have investigated the origin of efficiency droop for AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs). We find that the efficiency droop is likely to be caused by the electron leakage for DUV LEDs studied in this work.
Chunshuang Chu, Kangkai Tian, Jiamang Che, Hua Shao, Jianquan Kou, Yonghui Zhang, Zi-Hui Zhang, Hao-Chung Kuo   +7 more
doaj   +1 more source

Control of Resonance Absorption Modes for Broadband Infrared Metamaterial Absorber

IEEE Photonics Journal, 2019
Magnetic polariton resonance, standing wave, and their coupling have provided interesting and exotic characteristics for infrared metamaterial. In this paper, the metal-insulator-metal metamaterial absorbers consisting of either single layer dielectric ...
Wansen Ai, Peiheng Zhou, Ruizhi Sun, Yanning Liu, Ya Li, Ruomei Jiang, Wenxin Li, Xiaolong Weng, Li Zhang, Longjiang Deng   +9 more
doaj   +1 more source

DEVELOPMENT OF EXTREMELY LOW FREQUENCY PASSIVE SHIELDING APPLICATION USING MAGNETIC AQUEOUS SUBSTRATE [PDF]

Journal of Engineering Science and Technology, 2016
Public concerns on Extremely Low Frequency (ELF) Electromagnetic Field (EMF) exposure have been elongated since the last few decades. Electrical substations and high tension rooms in commercial buildings were among the contributing factors emanating ELF ...
NOOR ASHIKIN MOHD RASHID, WAN NOR LIZA MAHADI, SHARIFAH NADHIRAH SYED ZIN   +2 more
doaj  

Thickness-dependent Magnetic and Microwave Resonance Characterization of Combined Stripe Patterned FeCoBSi Films

Nanoscale Research Letters, 2018
In this paper, we fabricated a series of FeCoBSi multistoried patterned magnetic films with different thickness by traditional UV lithography method and DC sputtering deposition. Broad resonance band phenomenon was observed during high frequency property
Li Zhang, Yaoming Liu, Hanyu Zheng, Wenbin Zhu, Min Zhang, Linbo Zhang, Peiheng Zhou, Haiyan Chen, Xin Wang, Haipeng Lu, Jianliang Xie, Longjiang Deng   +11 more
doaj   +1 more source

Introduction to mesh based generated lumped parameter models for electromagnetic problems

CES Transactions on Electrical Machines and Systems, 2021
This paper is an introduction to mesh based generated reluctance network modeling. An overview of scientific works which led to the development of this approach is first presented.
Shuo Yang, Salim Asfirane, Sami Hlioui, Smaïl Mezani, Guillaume Krebs, Yacine Amara, Georges Barakat, Mohamed Gabsi, Wei Hua   +8 more
doaj   +1 more source

Nearly Efficiency-Droop-Free AlGaN-Based Ultraviolet Light-Emitting Diodes with a Specifically Designed Superlattice p-Type Electron Blocking Layer for High Mg Doping Efficiency

Nanoscale Research Letters, 2018
This work reports a nearly efficiency-droop-free AlGaN-based deep ultraviolet light-emitting diode (DUV LED) emitting in the peak wavelength of 270 nm. The DUV LED utilizes a specifically designed superlattice p-type electron blocking layer (p-EBL).
Zi-Hui Zhang, Sung-Wen Huang Chen, Chunshuang Chu, Kangkai Tian, Mengqian Fang, Yonghui Zhang, Wengang Bi, Hao-Chung Kuo   +7 more
doaj   +1 more source

Intelligent metasurface system for automatic tracking of moving targets and wireless communications based on computer vision

Nature Communications, 2023
The authors present an intelligent metasurface system that uses a target detection algorithm combined with a depth camera, to automatically detect the position of moving targets and achieve real-time wireless communications.
Weihan Li, Qian Ma, Che Liu, Yunfeng Zhang, Xianning Wu, Jiawei Wang, Shizhao Gao, Tianshuo Qiu, Tonghao Liu, Qiang Xiao, Jiaxuan Wei, Ting Ting Gu, Zhize Zhou, Fashuai Li, Qiang Cheng, Lianlin Li, Wenxuan Tang, Tie Jun Cui   +17 more
doaj   +1 more source