A 5.7GHz RF Wireless Power Transfer Receiver Using 84.5% Efficiency 12V SIDO Buck-Boost DC-DC Converter with Internal Power Supply Mode

2021 ◽  
Author(s):  
Tomohiro Higuchi ◽  
Dai Suzuki ◽  
Ryo Ishida ◽  
Yasuaki Isshiki ◽  
Kazuki Arai ◽  
...  
Keyword(s):  
Power Supply ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Rf Wireless ◽  
Supply Mode ◽  
Power Supply Mode

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

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 2018-2031
Author(s):  
Je Hyeon Park ◽  
Dong In Kim ◽  
Kae Won Choi
Keyword(s):  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Rf Wireless

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

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3803
Author(s):  
Chan-Mi Song ◽  
Hong-Jun Lim ◽  
Son Trinh-Van ◽  
Kang-Yoon Lee ◽  
Youngoo Yang ◽  
...  
Keyword(s):  
Wireless Power Transfer ◽  
Transmission Efficiency ◽  
Array Antenna ◽  
Dual Band ◽  
Single Frequency ◽  
Power Transfer ◽  
Wireless Power ◽  
Beam Focusing ◽  
Received Power ◽  
Rf Wireless

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 (RHCP) patches and 5.8 GHz RHCP patches, is derived from the optimization of 2.4 and 5.8 GHz thinned arrays, ultimately to achieve high transmission efficiency for various WPT scenarios. The dual-band RF WPT Tx system including the Tx array antenna and a Tx module is implemented, and Rx antennas with a 2.4 GHz patch, a 5.8 GHz patch, and a dual-band (2.4 and 5.8 GHz) patch are developed. To validate the proposed dual-band RF WPT system, WPT experiments using a single band and dual bands were conducted. When transmitting RF wireless power on a single frequency (either 2.482 GHz or 5.73 GHz), the received power according to the distance between the Tx and Rx and the position of the Rx was measured. When the distance was varied from 1 m to 3.9 m and the transmitted power was 40 dBm, the received power value at 2.482 GHz and 5.73 GHz were measured and found to be 24.75–13.5 dBm (WPT efficiency = 2.985–0.224%) and 19.25–6.8 dBm (WPT efficiency = 0.841–0.050%), respectively. The measured results were in good agreement with the calculated results, and it is revealed that the transmission efficiency when wireless power is transmitted via beam-focusing increases more than that with conventional beam-forming. Furthermore, the dual-band WPT experiment proves that 2.482 GHz beam and 5.73 GHz beams can be formed individually and that their wireless power can be transmitted to a dual-band Rx or two different Rx.

scholarly journals Evaluation of RF Wireless Power Transfer for Low-Power Aircraft Sensors

2020 ◽  
Author(s):  
Jan Tepper ◽  
Aygun Baltaci ◽  
Bernd Schleicher ◽  
Andreas Drexler ◽  
Svetoslav Duhovnikov ◽  
...  
Keyword(s):  
Low Power ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Rf Wireless

scholarly journals Opportunistic-Harvesting: RF Wireless Power Transfer Scheme for Multiple Access Relays System

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 16084-16099 ◽  
Author(s):  
Akashkumar Rajaram ◽  
Dushantha Nalin K. Jayakody ◽  
Kathiravan Srinivasan ◽  
Bin Chen ◽  
Vishal Sharma
Keyword(s):  
Multiple Access ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Transfer Scheme ◽  
Rf Wireless

scholarly journals Analysis of Received Power in RF Wireless Power Transfer System with Array Antennas

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Chan Mi Song ◽  
Son Trinh-Van ◽  
Sang-Hwa Yi ◽  
Jongseok Bae ◽  
Youngoo Yang ◽  
...  
Keyword(s):  
Wireless Power Transfer ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Array Antennas ◽  
Received Power ◽  
Wireless Power Transfer System ◽  
Rf Wireless

scholarly journals The Interaction between Load Circuits and Decision of Frequency for Efficient Wireless Power Transfer

2018 ◽  
Vol 8 (3) ◽  
pp. 1331
Author(s):  
Kazuya Yamaguchi
Keyword(s):  
Power Supply ◽  
Natural Frequencies ◽  
Wireless Power Transfer ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Ac Power ◽  
Wireless Power Transfer System ◽  
Efficient Transfer ◽  
The Ideal

<pre>This paper derives an expression of efficiency of wireless power transfer on a situation that there are two devices towards one AC power supply. The interaction between a power supply and load is paid attention on a conventional wireless power transfer system, in contrast, the interaction between loads must be taken account of on the situation too. This is attributed to a possibility that a load disturbs the energy transmitted from a power supply to another load. Moreover each load needs different frequency of power supply for the ideal transfer since they have different natural frequencies on many situations. This paper models a circumstance that there are a power supply and two loads with a state space equation, and proposes how to decide a frequency of power supply to realize efficient transfer for each load.</pre>

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