Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Hyunchul Ku"'
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 3, Pp 870-875 (2023)
In this paper, we analyzed the revised guidance on electromagnetic (EM) interference qualification of Regulatory Guide 1.180 (Revision 2), which is published by the U.S. Nuclear Regulatory Commission for electromagnetic compatibility qualification fo
Externí odkaz:
https://doaj.org/article/d94e869acfd94c60b91de01c86191b5d
Publikováno v:
IEEE Access, Vol 11, Pp 27280-27289 (2023)
In this study, we propose a digital beamforming system for microwave power transfer with a real-time beam-scanning algorithm for tracking a moving receiver. To perform scanning, each channel in the transmitter generates and converts a baseband signal
Externí odkaz:
https://doaj.org/article/7cd13bcbabd248209945d88c499f592f
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 22, Iss 1, Pp 64-73 (2022)
This paper proposes a sidelobe suppression beamforming scheme using tapered amplitude distribution for microwave power transfer (MPT) with a two-dimensional planar array antenna (PAA). To overcome the undesirable effects of sidelobes, the magnitude o
Externí odkaz:
https://doaj.org/article/70e657d126fb447aac8c993234d7afb7
Autor:
Euibum Lee, Hyunchul Ku
Publikováno v:
IEEE Access, Vol 8, Pp 70367-70374 (2020)
This paper proposes a 7-way microstrip divider for hexagonal honeycomb structures. The honeycomb arrangement has advantages such as equidistant adjacent output ports and high space utilization. The structure comprises six output ports arranged hexago
Externí odkaz:
https://doaj.org/article/e9b75d4926574144beeb24a8c81ee4fd
Analysis and Optimization of Wireless Power Transfer Efficiency Considering the Tilt Angle of a Coil
Autor:
Wei Huang, Hyunchul Ku
Publikováno v:
Journal of the Korean Institute of Electromagnetic Engineering and Science, Vol 18, Iss 1, Pp 13-19 (2018)
Wireless power transfer (WPT) based on magnetic resonant coupling is a promising technology in many industrial applications. Efficiency of the WPT system usually depends on the tilt angle of the transmitter or the receiver coil. This work analyzes th
Externí odkaz:
https://doaj.org/article/6f4ed7ad03f14dcabbfc552c813c87c5
Publikováno v:
Energies, Vol 14, Iss 21, p 7203 (2021)
This paper proposes a 5.8 GHz highly efficient rectifier design using harmonic termination for wireless power transfer. The diode used to convert the received RF power to DC is a non-linear device, and a harmonic component is generated, which causes
Externí odkaz:
https://doaj.org/article/5db5c813f09846e9aa7351c85cef2f76
Autor:
Wonshil Kang, Hyunchul Ku
Publikováno v:
PLoS ONE, Vol 13, Iss 9, p e0203041 (2018)
A new dual-state impedance matching scheme for a microwave driven plasma lamp using a solid-state power amplifier (SSPA) is presented. The impedance of the plasma lamp depends on the amount of input radio frequency (RF) energy, and therefore has very
Externí odkaz:
https://doaj.org/article/853fb7ae673544839536d98d09bd5249
Autor:
Hyunchul Ku, Inho Park
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 70:1975-1982
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebd6b03f7ab15a3dca2cc6c5bae6c919
https://doi.org/10.1109/tmtt.2021.3131235
https://doi.org/10.1109/tmtt.2021.3131235
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 32:951-958
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d2705ac8780e76c748e399e0574ff45
https://doi.org/10.5515/kjkiees.2021.32.11.951
https://doi.org/10.5515/kjkiees.2021.32.11.951
Publikováno v:
2022 Asia-Pacific Microwave Conference (APMC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5590d8dd3967ab67fbecf6b0b80b293
https://doi.org/10.23919/apmc55665.2022.10000029
https://doi.org/10.23919/apmc55665.2022.10000029