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Paper Abstract and Keywords
Presentation 2014-07-04 13:25
[Invited Talk] A study of enhancement of Q-factor of LC Resonators in high frequency region
Nobuyuki Itoh, Yuka Itano, Hiroki Tsuji, Kiyotaka Komoku, Takayuki Morishita (Okayama Prefec. Univ.), Sadayuki Yoshitomi (Toshiba) ICD2014-24
Abstract (in Japanese) (See Japanese page) 
(in English) An enhancement of Q-factor of LC resonators in millimeter wave and quasi-millimeter wave has been studied. Q-factor of LC resonator is degraded as functions of operating frequency since Q-factor of varactor behaves in proportion to inverse frequency and that of inductor degenerates in spite of in proportion to frequency, in such a high frequency region. In this work, Q-factor of varactors was improved by downsizing, and Q-factor of inductors was improved using striped shape. These improvements were confirmed by 20-GHz Voltage-controlled oscillators’ phase noise measurements.
Keyword (in Japanese) (See Japanese page) 
(in English) LC resonator / Varactors / Inductors / Q-factor / Voltage-controlled oscillators / Phase noise / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 120, ICD2014-24, pp. 65-70, July 2014.
Paper # ICD2014-24 
Date of Issue 2014-06-26 (ICD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee ICD ITE-IST  
Conference Date 2014-07-03 - 2014-07-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Izumo-shi (Shimane) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Analog, Mixed Analog and Digital, RF, and Sensor Interface Circuitry 
Paper Information
Registration To ICD 
Conference Code 2014-07-ICD-IST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study of enhancement of Q-factor of LC Resonators in high frequency region 
Sub Title (in English)  
Keyword(1) LC resonator  
Keyword(2) Varactors  
Keyword(3) Inductors  
Keyword(4) Q-factor  
Keyword(5) Voltage-controlled oscillators  
Keyword(6) Phase noise  
Keyword(7)  
Keyword(8)  
1st Author's Name Nobuyuki Itoh  
1st Author's Affiliation Okayama Prefectural University (Okayama Prefec. Univ.)
2nd Author's Name Yuka Itano  
2nd Author's Affiliation Okayama Prefectural University (Okayama Prefec. Univ.)
3rd Author's Name Hiroki Tsuji  
3rd Author's Affiliation Okayama Prefectural University (Okayama Prefec. Univ.)
4th Author's Name Kiyotaka Komoku  
4th Author's Affiliation Okayama Prefectural University (Okayama Prefec. Univ.)
5th Author's Name Takayuki Morishita  
5th Author's Affiliation Okayama Prefectural University (Okayama Prefec. Univ.)
6th Author's Name Sadayuki Yoshitomi  
6th Author's Affiliation Toshiba Corporation (Toshiba)
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Speaker Author-1 
Date Time 2014-07-04 13:25:00 
Presentation Time 50 minutes 
Registration for ICD 
Paper # ICD2014-24 
Volume (vol) vol.114 
Number (no) no.120 
Page pp.65-70 
#Pages 6 
Date of Issue 2014-06-26 (ICD) 

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