TY - JOUR
T1 - Effect of quality factor on determining the optimal position of a transmitter in wireless power transfer using a relay
AU - Lee, Kisong
AU - Chae, Sung Ho
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5
Y1 - 2017/5
N2 - In this letter, the optimal placement of a transmitter is investigated under a given arrangement of a relay and a receiver for nonradiative wireless power transfer. Specifically, a closed-form equation is derived for the optimal coupling coefficient between the transmitter and the relay using an equivalent circuit model. Based on this theoretical analysis, it is found that the quality factor of the transmitter has a great effect on determining its optimal placement. In particular, the transmission efficiency can be improved by locating the resonator with a smaller quality factor (e.g., transmitter or receiver) closer to the relay. In order to support the validity of the analysis, the resonators, including the relay, receiver, and three different types of transmitters, are experimentally designed and fabricated. It is shown that our analytical results are well matched with the measured ones in various settings.
AB - In this letter, the optimal placement of a transmitter is investigated under a given arrangement of a relay and a receiver for nonradiative wireless power transfer. Specifically, a closed-form equation is derived for the optimal coupling coefficient between the transmitter and the relay using an equivalent circuit model. Based on this theoretical analysis, it is found that the quality factor of the transmitter has a great effect on determining its optimal placement. In particular, the transmission efficiency can be improved by locating the resonator with a smaller quality factor (e.g., transmitter or receiver) closer to the relay. In order to support the validity of the analysis, the resonators, including the relay, receiver, and three different types of transmitters, are experimentally designed and fabricated. It is shown that our analytical results are well matched with the measured ones in various settings.
KW - Equivalent circuit model
KW - Optimal configuration
KW - Relay resonator
KW - Wireless power transfer (WPT)
UR - http://www.scopus.com/inward/record.url?scp=85018637801&partnerID=8YFLogxK
U2 - 10.1109/LMWC.2017.2690853
DO - 10.1109/LMWC.2017.2690853
M3 - Article
AN - SCOPUS:85018637801
SN - 1531-1309
VL - 27
SP - 521
EP - 523
JO - IEEE Microwave and Wireless Components Letters
JF - IEEE Microwave and Wireless Components Letters
IS - 5
M1 - 7902148
ER -