The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
O método de expansão de impedância (IEM) é uma técnica de modelagem de circuitos para dispositivos eletricamente pequenos baseada no método dos momentos. Em um estudo anterior, um modelo de circuito de um sistema de transferência de energia sem fio (WPT) foi desenvolvido utilizando a análise IEM e de modo próprio. Contudo, esta técnica assume que todos os elementos de acoplamento (por exemplo, loops de alimentação e bobinas ressonantes) estão na ausência de dispersores vizinhos (por exemplo, carrocerias de veículos). Este estudo estende a teoria do IEM para obter o modelo de circuito de um sistema WPT nas proximidades de um espalhador perfeitamente condutor (PCS). Os resultados numéricos mostram que o método proposto pode ser aplicado às frequências nas quais a dimensão do PCS é inferior a aproximadamente um quarto do comprimento de onda. Além disso, o modelo do circuito produzido é válido na banda de frequência operacional.
Nozomi HAGA
Gunma University
Jerdvisanop CHAKAROTHAI
the National Institute of Information and Communications Technology
Keisuke KONNO
Tohoku University
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copiar
Nozomi HAGA, Jerdvisanop CHAKAROTHAI, Keisuke KONNO, "Circuit Modeling of Wireless Power Transfer System in the Vicinity of Perfectly Conducting Scatterer" in IEICE TRANSACTIONS on Communications,
vol. E103-B, no. 12, pp. 1411-1420, December 2020, doi: 10.1587/transcom.2019EBP3211.
Abstract: The impedance expansion method (IEM) is a circuit-modeling technique for electrically small devices based on the method of moments. In a previous study, a circuit model of a wireless power transfer (WPT) system was developed by utilizing the IEM and eigenmode analysis. However, this technique assumes that all the coupling elements (e.g., feeding loops and resonant coils) are in the absence of neighboring scatters (e.g., bodies of vehicles). This study extends the theory of the IEM to obtain the circuit model of a WPT system in the vicinity of a perfectly conducting scatterer (PCS). The numerical results show that the proposed method can be applied to the frequencies at which the dimension of the PCS is less than approximately a quarter wavelength. In addition, the yielded circuit model is found to be valid at the operating frequency band.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019EBP3211/_p
Copiar
@ARTICLE{e103-b_12_1411,
author={Nozomi HAGA, Jerdvisanop CHAKAROTHAI, Keisuke KONNO, },
journal={IEICE TRANSACTIONS on Communications},
title={Circuit Modeling of Wireless Power Transfer System in the Vicinity of Perfectly Conducting Scatterer},
year={2020},
volume={E103-B},
number={12},
pages={1411-1420},
abstract={The impedance expansion method (IEM) is a circuit-modeling technique for electrically small devices based on the method of moments. In a previous study, a circuit model of a wireless power transfer (WPT) system was developed by utilizing the IEM and eigenmode analysis. However, this technique assumes that all the coupling elements (e.g., feeding loops and resonant coils) are in the absence of neighboring scatters (e.g., bodies of vehicles). This study extends the theory of the IEM to obtain the circuit model of a WPT system in the vicinity of a perfectly conducting scatterer (PCS). The numerical results show that the proposed method can be applied to the frequencies at which the dimension of the PCS is less than approximately a quarter wavelength. In addition, the yielded circuit model is found to be valid at the operating frequency band.},
keywords={},
doi={10.1587/transcom.2019EBP3211},
ISSN={1745-1345},
month={December},}
Copiar
TY - JOUR
TI - Circuit Modeling of Wireless Power Transfer System in the Vicinity of Perfectly Conducting Scatterer
T2 - IEICE TRANSACTIONS on Communications
SP - 1411
EP - 1420
AU - Nozomi HAGA
AU - Jerdvisanop CHAKAROTHAI
AU - Keisuke KONNO
PY - 2020
DO - 10.1587/transcom.2019EBP3211
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E103-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2020
AB - The impedance expansion method (IEM) is a circuit-modeling technique for electrically small devices based on the method of moments. In a previous study, a circuit model of a wireless power transfer (WPT) system was developed by utilizing the IEM and eigenmode analysis. However, this technique assumes that all the coupling elements (e.g., feeding loops and resonant coils) are in the absence of neighboring scatters (e.g., bodies of vehicles). This study extends the theory of the IEM to obtain the circuit model of a WPT system in the vicinity of a perfectly conducting scatterer (PCS). The numerical results show that the proposed method can be applied to the frequencies at which the dimension of the PCS is less than approximately a quarter wavelength. In addition, the yielded circuit model is found to be valid at the operating frequency band.
ER -