High Q-factor compact coils having non-uniform wire width for wireless power transfer system

Tae Hyung Kim; Byung Hyun Kim; Jong Gwan Yook; Gi Ho Yun; Woong Yong Lee

doi:10.1109/URSIAP-RASC.2016.7601279

High Q-factor compact coils having non-uniform wire width for wireless power transfer system

Tae Hyung Kim, Byung Hyun Kim, Jong Gwan Yook, Gi Ho Yun, Woong Yong Lee

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

Compact coil is designed at 6.78 MHz for wireless power transfer (WPT) system. The proposed coil is optimized by adjusting the gap between wires, scaling factor, and the number of turns to achieve high quality factor (Q-factor), and its Q-factor is 263. The Q-factor of the proposed coil exhibits 1.21 times higher than conventional coil. The coil is made on thin substrate with a low relative permittivity and a loss tangent to decrease influence of the substrate, and the coil size is 100 mm × 100 mm × 0.4 mm. The measured efficiency is shown as 95% at 50 mm and 30% at 200 mm. The compact coil having non-uniform wire width has higher efficiency than that of conventional coil. The proposed coil can be utilized for the various mobile applications.

Original language	English
Title of host publication	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	854-857
Number of pages	4
ISBN (Electronic)	9781467388016
DOIs	https://doi.org/10.1109/URSIAP-RASC.2016.7601279
Publication status	Published - 2016 Oct 19
Event	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 - Seoul, Korea, Republic of Duration: 2016 Aug 21 → 2016 Aug 25

Publication series

Name	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016

Other

Other	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
Country/Territory	Korea, Republic of
City	Seoul
Period	16/8/21 → 16/8/25

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

All Science Journal Classification (ASJC) codes

Signal Processing
Instrumentation
Computer Networks and Communications

Access to Document

10.1109/URSIAP-RASC.2016.7601279

Cite this

Kim, T. H., Kim, B. H., Yook, J. G., Yun, G. H., & Lee, W. Y. (2016). High Q-factor compact coils having non-uniform wire width for wireless power transfer system. In 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 (pp. 854-857). [7601279] (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/URSIAP-RASC.2016.7601279

Kim, Tae Hyung ; Kim, Byung Hyun ; Yook, Jong Gwan ; Yun, Gi Ho ; Lee, Woong Yong. / High Q-factor compact coils having non-uniform wire width for wireless power transfer system. 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 854-857 (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016).

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title = "High Q-factor compact coils having non-uniform wire width for wireless power transfer system",

abstract = "Compact coil is designed at 6.78 MHz for wireless power transfer (WPT) system. The proposed coil is optimized by adjusting the gap between wires, scaling factor, and the number of turns to achieve high quality factor (Q-factor), and its Q-factor is 263. The Q-factor of the proposed coil exhibits 1.21 times higher than conventional coil. The coil is made on thin substrate with a low relative permittivity and a loss tangent to decrease influence of the substrate, and the coil size is 100 mm × 100 mm × 0.4 mm. The measured efficiency is shown as 95% at 50 mm and 30% at 200 mm. The compact coil having non-uniform wire width has higher efficiency than that of conventional coil. The proposed coil can be utilized for the various mobile applications.",

author = "Kim, {Tae Hyung} and Kim, {Byung Hyun} and Yook, {Jong Gwan} and Yun, {Gi Ho} and Lee, {Woong Yong}",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 ; Conference date: 21-08-2016 Through 25-08-2016",

year = "2016",

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doi = "10.1109/URSIAP-RASC.2016.7601279",

language = "English",

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Kim, TH, Kim, BH, Yook, JG, Yun, GH & Lee, WY 2016, High Q-factor compact coils having non-uniform wire width for wireless power transfer system. in 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016., 7601279, 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016, Institute of Electrical and Electronics Engineers Inc., pp. 854-857, 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016, Seoul, Korea, Republic of, 16/8/21. https://doi.org/10.1109/URSIAP-RASC.2016.7601279

High Q-factor compact coils having non-uniform wire width for wireless power transfer system. / Kim, Tae Hyung; Kim, Byung Hyun; Yook, Jong Gwan; Yun, Gi Ho; Lee, Woong Yong.

2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 854-857 7601279 (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Kim TH, Kim BH, Yook JG, Yun GH, Lee WY. High Q-factor compact coils having non-uniform wire width for wireless power transfer system. In 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 854-857. 7601279. (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016). https://doi.org/10.1109/URSIAP-RASC.2016.7601279

High Q-factor compact coils having non-uniform wire width for wireless power transfer system

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