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Paper Abstract and Keywords
Presentation 2011-12-16 13:30
Formulation of oscillator Q for the FET oscillators with a coaxial resonator
Tomoya Morimasa, Kenji Itoh, Shin-ichi Betsudan, Shigeru Makino, Tetsuo Hirota, Keisuke Noguchi (KIT), Takashi Ohira (TUT), Masaomi Tsuru, Hiroshi Ikematsu (Mitsubishi Electric Corporation) MW2011-138
Abstract (in Japanese) (See Japanese page) 
(in English) Leeson's formula is well-known one for phase noise behaviour in oscillators. However relationship between Q factor Qosc in Leeson's formula and resonator's Q has not been analyzed in past works. Recently Ohira clarified the method to formulate oscillator's Q factor Qosc from circuit parameters. In our previous report, formulation of Qosc is demonstrated for the FET oscillator with a coaxial resonator under assumption of the lossless resonation. And it was clarified that Qosc is proportional to resonator’s Q. In this report, formulation of Qosc is presented for the FET oscillator with a coaxial resonator without above assumptions. The analytical results are agreed with the simulated ones. Furthermore relationship between Qosc and phase noise is considered with the variation of feedback capacitors, in analytical and experimental approach.
Keyword (in Japanese) (See Japanese page) 
(in English) Q factor / phase noise / oscillator / resonator / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 351, MW2011-138, pp. 71-76, Dec. 2011.
Paper # MW2011-138 
Date of Issue 2011-12-08 (MW) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
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 MW  
Conference Date 2011-12-15 - 2011-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamaguchi University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2011-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Formulation of oscillator Q for the FET oscillators with a coaxial resonator 
Sub Title (in English)  
Keyword(1) Q factor  
Keyword(2) phase noise  
Keyword(3) oscillator  
Keyword(4) resonator  
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1st Author's Name Tomoya Morimasa  
1st Author's Affiliation Kanazawa Institute of Technology (KIT)
2nd Author's Name Kenji Itoh  
2nd Author's Affiliation Kanazawa Institute of Technology (KIT)
3rd Author's Name Shin-ichi Betsudan  
3rd Author's Affiliation Kanazawa Institute of Technology (KIT)
4th Author's Name Shigeru Makino  
4th Author's Affiliation Kanazawa Institute of Technology (KIT)
5th Author's Name Tetsuo Hirota  
5th Author's Affiliation Kanazawa Institute of Technology (KIT)
6th Author's Name Keisuke Noguchi  
6th Author's Affiliation Kanazawa Institute of Technology (KIT)
7th Author's Name Takashi Ohira  
7th Author's Affiliation Toyohashi University of Technology (TUT)
8th Author's Name Masaomi Tsuru  
8th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corporation)
9th Author's Name Hiroshi Ikematsu  
9th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corporation)
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Speaker Author-1 
Date Time 2011-12-16 13:30:00 
Presentation Time 30 minutes 
Registration for MW 
Paper # MW2011-138 
Volume (vol) vol.111 
Number (no) no.351 
Page pp.71-76 
#Pages 6 
Date of Issue 2011-12-08 (MW) 

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