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Paper Abstract and Keywords
Presentation 2012-12-01 10:20
Evaluation of a Coaxial Tube Shape Suitable for PIM Measurement using Standing-Wave Coaxial Tube Method
Daijiro Ishibashi, Nobuhiro Kuga (Yokohama National Univ.) EMD2012-79 Link to ES Tech. Rep. Archives: EMD2012-79
Abstract (in Japanese) (See Japanese page) 
(in English) This paper evaluated the influence of characteristic impedance of the used coaxial tube on PIM measurement. First the PIM levels were observed using the coaxial tubes with 33Ω and 50Ω impedance. It showed effect of the different characteristic impedance influences only coupling strength. When the observed PIM level of 50Ω coaxial tube was calculated by coupling strength from one of 33Ω coaxial tube, the results of 50Ω coaxial tube was about 5dB higher than one of 33Ω coaxial tube. For investigation of the reason, coupling strength was evaluated when the coaxial tubes with different impedance were used. By the characteristic impedance both amplitude and frequency of maximum coupling strength changed. Here the change of the frequency could be calculated by the fringing capacitance and the electrical length expansion. It was denoted that the calculation might help a decision of a suitable length of the specimen and a suitable coaxial tube for PIM measurement.
Keyword (in Japanese) (See Japanese page) 
(in English) Passive intermodulation / Nonlinearity / Standing-wave / Coaxial tube / Noncontact / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 332, EMD2012-79, pp. 87-90, Nov. 2012.
Paper # EMD2012-79 
Date of Issue 2012-11-23 (EMD) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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 EMD  
Conference Date 2012-11-30 - 2012-12-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Chiba Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Session IS-EMD2012 
Paper Information
Registration To EMD 
Conference Code 2012-11-EMD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of a Coaxial Tube Shape Suitable for PIM Measurement using Standing-Wave Coaxial Tube Method 
Sub Title (in English)  
Keyword(1) Passive intermodulation  
Keyword(2) Nonlinearity  
Keyword(3) Standing-wave  
Keyword(4) Coaxial tube  
Keyword(5) Noncontact  
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1st Author's Name Daijiro Ishibashi  
1st Author's Affiliation Yokohama National University (Yokohama National Univ.)
2nd Author's Name Nobuhiro Kuga  
2nd Author's Affiliation Yokohama National University (Yokohama National Univ.)
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Speaker Author-1 
Date Time 2012-12-01 10:20:00 
Presentation Time 20 minutes 
Registration for EMD 
Paper # EMD2012-79 
Volume (vol) vol.112 
Number (no) no.332 
Page pp.87-90 
#Pages
Date of Issue 2012-11-23 (EMD) 


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