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Paper Abstract and Keywords
Presentation 2016-10-21 15:20
Broadband Characteristics of the Quasi-distributed Constant Line Filter with Multiple Magnetic Core
Yusuke Ohdaira, Koki Harada, Shigeyoshi Yoshida (NEC TOKIN), Toshiro Sato (Shinshu Univ.) EMCJ2016-82 MW2016-114 EST2016-78 Link to ES Tech. Rep. Archives: MW2016-114 EST2016-78
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, increase of a broadband noise is concerned because of faster switching and higher switching frequency of a power converter circuit. Therefore, expansion of an attenuation bandwidth of a common-mode choke coil is required. We report that large attenuation in broadband is obtained without influence of winding capacitance by the quasi-distributed constant line filter with a grounding terminal using multiple magnetic core composed of higher permeability material and lower permeability material. In samples with same total volume of magnetic core, the maximum frequency that attenuation characteristic is controllable by multiple magnetic core is expanded from 17 MHz to 53 MHz by earthing of a grounding terminal. In samples with constant volume of individual magnetic core, the maximum frequency that benefit of multiple magnetic core is effectively obtained is expanded from 7 MHz to 50 MHz by earthing of a grounding terminal.
Keyword (in Japanese) (See Japanese page) 
(in English) Common-mode / Broadband / Quasi-distributed constant structure / Multiple magnetic core, / Winding capacitance / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 253, EMCJ2016-82, pp. 131-136, Oct. 2016.
Paper # EMCJ2016-82 
Date of Issue 2016-10-13 (EMCJ, MW, EST) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Conference Information
Committee EMCJ IEE-EMC MW EST  
Conference Date 2016-10-20 - 2016-10-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, Electromagnetic simulation, EMC, etc. 
Paper Information
Registration To EMCJ 
Conference Code 2016-10-EMCJ-EMC-MW-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Broadband Characteristics of the Quasi-distributed Constant Line Filter with Multiple Magnetic Core 
Sub Title (in English)  
Keyword(1) Common-mode  
Keyword(2) Broadband  
Keyword(3) Quasi-distributed constant structure  
Keyword(4) Multiple magnetic core,  
Keyword(5) Winding capacitance  
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1st Author's Name Yusuke Ohdaira  
1st Author's Affiliation NEC TOKIN Corporation (NEC TOKIN)
2nd Author's Name Koki Harada  
2nd Author's Affiliation NEC TOKIN Corporation (NEC TOKIN)
3rd Author's Name Shigeyoshi Yoshida  
3rd Author's Affiliation NEC TOKIN Corporation (NEC TOKIN)
4th Author's Name Toshiro Sato  
4th Author's Affiliation Shinshu University (Shinshu Univ.)
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Speaker Author-1 
Date Time 2016-10-21 15:20:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2016-82, MW2016-114, EST2016-78 
Volume (vol) vol.116 
Number (no) no.253(EMCJ), no.254(MW), no.255(EST) 
Page pp.131-136 
#Pages
Date of Issue 2016-10-13 (EMCJ, MW, EST) 


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