Results 51 to 60 of about 209,492 (196)

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

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

Analysis and Experiment on Multi-Antenna-to-Multi-Antenna RF Wireless Power Transfer

IEEE Access, 2021
In this paper, we provide a tool for predicting the power transfer efficiency of radio-frequency (RF) wireless power transfer (WPT). With its capability of long-range wireless power transfer, RF WPT is considered as a very promising recharging technique ...
Je Hyeon Park, Dong In Kim, Kae Won Choi
doaj   +1 more source

Dual-Band RF Wireless Power Transfer System with a Shared-Aperture Dual-Band Tx Array Antenna

Energies, 2021
In this paper, a dual-band RF wireless power transfer (WPT) system with a shared-aperture dual-band Tx array antenna for 2.4 and 5.8 GHz is proposed. The final configuration of the Tx array, which is made up of 2.4 GHz right-handed circular polarization (
Chan-Mi Song, Hong-Jun Lim, Son Trinh-Van, Kang-Yoon Lee, Youngoo Yang, Keum-Cheol Hwang   +5 more
doaj   +1 more source

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

Reconstruction of the Primordial Power Spectrum by Direct Inversion

, 2009
We introduce a new method for reconstructing the primordial power spectrum, $P(k)$, directly from observations of the Cosmic Microwave Background (CMB).
A. Lewis, A.A. Starobinsky, C.R. Contaldi, Carlo R Contaldi, G. Nicholson, G. Nicholson, Gavin Nicholson, HST collaboration, J. Martin, J.R. Bond, L. Verde, M. Bridges, M. Joy, N. Kogo, P. Mukherjee, P. Mukherjee, P. Mukherjee, P. Paykari, Paniez Paykari, Planck collaboration, R.K. Jain, R.K. Jain, S. Hannestad, Supernova Cosmology Project collaboration, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, WMAP collaboration, Y. Wang   +27 more
core   +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

Six mechanisms used on the SSM/1 radiometer [PDF]

, 1985
Future USAF Block 5D Defense Meteorological Satellites will carry a scanning microwave radiometer sensor (SSM/1). SSM/1 senses the emission of microwave energy and returns to earth data used to determine weather conditions, such as rainfall rates, soil ...
Ludwig, H. R.
core   +1 more source

Spin-transfer-torque resonant switching and injection locking in presence of a weak external microwave field for spin valves with perpendicular materials

, 2010
The effects of a weak microwave field in the magnetization dynamics driven by spin-transfer-torque in spin-valves with perpendicular materials have been systematically studied by means of full micromagnetic simulations.
Azzerboni, Bruno, Carpentieri, Mario, Finocchio, Giovanni, Torres, Luis   +3 more
core   +1 more source

Measurement and Calibration of A High-Sensitivity Microwave Power Sensor with An Attenuator [PDF]

, 2014
In this paper, measurement and calibration of a high-sensitivity microwave power sensor through an attenuator is performed using direct comparison transfer technique.
Meng, Y. S., Shan, Y.
core   +1 more source