Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System

In this paper, we propose a measurement method with a simple procedure based on the definition of the impedance parameter using a two-port network analyzer. The main advantage of the proposed measurement method is that there is no limit on the number of measuring coils, and the method has a simple m...

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Main Authors: Seon-Jae Jeon, Dong-Wook Seo
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/20/3950
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author Seon-Jae Jeon
Dong-Wook Seo
author_facet Seon-Jae Jeon
Dong-Wook Seo
author_sort Seon-Jae Jeon
collection DOAJ
description In this paper, we propose a measurement method with a simple procedure based on the definition of the impedance parameter using a two-port network analyzer. The main advantage of the proposed measurement method is that there is no limit on the number of measuring coils, and the method has a simple measurement procedure. To verify the proposed method, we measured the coupling coefficient among three coils with respect to the distance between the two farthest coils at 6.78 and 13.56 MHz, which are frequencies most common for a wireless power transfer (WPT) system in high-frequency band. As a result, the proposed method showed good agreement with results of the conventional S-parameter measurement methods.
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spelling doaj.art-c09f6d4ebd2c4e20a5302930fc4a3a782022-12-22T02:19:36ZengMDPI AGEnergies1996-10732019-10-011220395010.3390/en12203950en12203950Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT SystemSeon-Jae Jeon0Dong-Wook Seo1Department of Radio Communication Engineering, Korea Maritime and Ocean University (KMOU), 727 Taejong-ro, Yeongdo-gu, Busan 49112, KoreaDepartment of Radio Communication Engineering, Korea Maritime and Ocean University (KMOU), 727 Taejong-ro, Yeongdo-gu, Busan 49112, KoreaIn this paper, we propose a measurement method with a simple procedure based on the definition of the impedance parameter using a two-port network analyzer. The main advantage of the proposed measurement method is that there is no limit on the number of measuring coils, and the method has a simple measurement procedure. To verify the proposed method, we measured the coupling coefficient among three coils with respect to the distance between the two farthest coils at 6.78 and 13.56 MHz, which are frequencies most common for a wireless power transfer (WPT) system in high-frequency band. As a result, the proposed method showed good agreement with results of the conventional S-parameter measurement methods.https://www.mdpi.com/1996-1073/12/20/3950coupling coefficientimpedance matrixmultiple coilsmutual inductancescattering matrixtransfer impedancewireless power transfer
spellingShingle Seon-Jae Jeon
Dong-Wook Seo
Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System
Energies
coupling coefficient
impedance matrix
multiple coils
mutual inductance
scattering matrix
transfer impedance
wireless power transfer
title Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System
title_full Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System
title_fullStr Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System
title_full_unstemmed Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System
title_short Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System
title_sort coupling coefficient measurement method with simple procedures using a two port network analyzer for a multi coil wpt system
topic coupling coefficient
impedance matrix
multiple coils
mutual inductance
scattering matrix
transfer impedance
wireless power transfer
url https://www.mdpi.com/1996-1073/12/20/3950
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