Results 41 to 50 of about 27,447 (156)

5.8 Ghz Microstrip Antennas And Array For Microwave Power Transfer

, 2015
Wireless power transmission presents itself as being a solution to some common problems of the extensive use of electronic devices such as the removal of parasitic components present in feeding pads and the constant charge of electronic devices without the need of wires. This solution becomes attractive, for example, as a means of increasing the flight
Carvalho, António, Carvalho, Nuno, Pinho, Pedro, Georgiadis, Apostolos, Constanzo, Alessandra   +4 more
openaire   +2 more sources

Energizing Emergency Exit Signs with Wireless Energy Transfer

Energies, 2023
Emergency exit lights in public buildings are necessary for safety and evacuation. International safety standards require such lighting in many public places, like airports, schools, malls, hospitals, and other spaces, to prevent human casualties in ...
Mohamed Z. Chaari, Gilroy P. Pereira, Mohamed Abdelfatah, Rashid Al-Rahimi, Otman Aghzout   +4 more
doaj   +1 more source

Sensitive Microwave Rectifier for High-Power Wireless Transfer Based on Ultra-Low Turn-On Voltage Quasi-Vertical GaN SBD

IEEE Open Journal of Power Electronics
This paper presents the theoretical analysis and experimental validation of a harmonic-terminated high-efficiency and high-power microwave rectifier.
Xiaochen Yu, Ya-Xun Lin, Ivona Z. Mitrovic, Steve Hall, Jenq-Horng Liang, Der-Sheng Chao, Minzhang Liu, Xiantao Yang, Yi Huang, Ta-Jen Yen, Jiafeng Zhou   +10 more
doaj   +1 more source

Wireless Power Transfer Based on Microwaves and Time Reversal for Indoor Environments [PDF]

IEEE Access, 2019
Resorting to power accurate delivery for wireless power transfer (WPT) based on microwaves, a theory and method based on time reversal (TR) for WPT in 3D indoor environments are presented in this paper. Conventional WPT methods have the limitations of requiring that the elements on power source array (PSA) must have the same structure and regular ...
Bing Li 0016, Shiqi Liu 0002, Hong-Lin Zhang, Bin-Jie Hu, Deshuang Zhao, Yingkun Huang   +5 more
openaire   +2 more sources

Research on Key Technologies for Microwave Wireless Power Transfer Receivers

Energies
Microwave wireless power transfer (MWPT) technology has the advantages of long distance and high transmission efficiency; therefore, MWPT has many applications in aerospace, space solar power stations (SSPSs), and so on.
Man Ruan, Xudong Wang, Wanli Xu, Long Huang, Kai Wu, Mengyi Wang, Yujuan Yin, Jinmao Chen   +7 more
doaj   +1 more source

DC-25 GHz and Low-Loss MEMS Thermoelectric Power Sensors with Floating Thermal Slug and Reliable Back Cavity Based on GaAs MMIC Technology

Micromachines, 2018
Wideband and low-loss microwave power measurements are becoming increasingly important for microwave communication and radar systems. To achieve such a power measurement, this paper presents the design and measurement of wideband DC-25 GHz and low-loss ...
Zhiqiang Zhang, Yao Ma
doaj   +1 more source

Numerical simulation of hotspot in polyol ester production using microwave-assisted reaction

Results in Engineering
The complex distribution of electric field and heat transfer in microwave heating causes unfavorable hotspots in a microwave-assisted transesterification process.
Nur Atiqah Mohamad Aziz, Hassan Mohamed, Mei Yin Ong, Robiah Yunus, Ming Chiat Law, Hamidah Abd Hamid, Dina Kania, Teuku Meurah Indra Mahlia   +7 more
doaj   +1 more source

Effect of feedstock and microwave pyrolysis temperature on physio-chemical and nano-scale mechanical properties of biochar

Bioresources and Bioprocessing, 2019
Biochars were produced from softwood chips (spruce–fir mix) and hemp stalk biomasses in an in-house-developed microwave pyrolysis reactor. A kilogram batch raw biomass mixed with 10 wt% microwave absorber was pyrolyzed at 60-min residence time. Microwave
Chase A. Wallace, Muhammad T. Afzal, Gobinda C. Saha   +2 more
doaj   +1 more source

Study on drying characteristics of combined microwave-hot air drying of paddy

Case Studies in Thermal Engineering
Combining microwave drying with traditional hot-air drying can significantly enhance drying efficiency and uniformity owing to its unique internal heating characteristics, making it suitable for drying fresh paddy susceptible to mold.
Zhilong Zhang, Youqing Chen, Jiwen Peng, Sen Huang, Huichang Wu, Xuemei Gao   +5 more
doaj   +1 more source

Microwave hyperthermia ablation of hepatic cancerous tumors using different coaxial antenna designs: A numerical analysis [PDF]

AIP Advances
Microwave Hyperthermia Ablation (MWHA) is a recent thermal ablation method for managing Hepatocellular Carcinoma. The ablation’s size and effectiveness rely on the medical applicator design (antenna) and energy transfer efficiency.
Ali M. Hameed, Asmaa F. Abbas, Saad R. Sulttan, Asawer A. Alwasiti, Mohammed Awad   +4 more
doaj   +1 more source