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Paper Abstract and Keywords
Presentation 2026-05-29 13:55
Development and Evaluation of LRL Calibration Kit for Between 2.92 mm and 1.85 mm Coaxial Connector
Makoto Yoshida (CDEX), Yuki Kawahara (KMCO) EMCJ2026-14
Abstract (in Japanese) (See Japanese page) 
(in English) Measurement instruments for high-frequency, such as power sensors have coaxial connectors as test ports that respond to the maximum measuring frequency. A between-type coaxial adapter is required when using a coaxial connector that is not the same as the test port. However, it is difficult to perform a high accuracy calibration on the reference plane of the adapter. In general, the method is used to correct measurement results based on the loss of the adapter. If the maximum measuring frequency of CISPR-16 is extended up to 40 GHz, it will be increased in the use of between-type coaxial adapters and require high accuracy measuring those losses. The losses can measure using a vector network analyzer, but there is a problem that flash-through cannot be used for calibration. In this study, we developed an LRL (Line-Reflect-Line) calibration kit for a between 2.92 mm(f) and 1.85 mm(f) coaxial connector to facilitate easy and highly accurate measuring. The shortest line standard of this LRL calibration kit accurately characterized the loss coefficient and the electrical length using 2.92 mm coaxial and 1.85 mm coaxial SOLT calibration kits which are traceable to NMI (National Metrology Institute). We evaluated this LRL calibration kit using several devices under test and obtained good results.
Keyword (in Japanese) (See Japanese page) 
(in English) Coaxial / LRL / Calibration / 2.92 mm / 1.85 mm / Between / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 41, EMCJ2026-14, pp. 69-74, May 2026.
Paper # EMCJ2026-14 
Date of Issue 2026-05-21 (EMCJ) 
ISSN 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 EMCJ IEE-SPC IEE-EMC  
Conference Date 2026-05-28 - 2026-05-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2026-05-EMCJ-SPC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development and Evaluation of LRL Calibration Kit for Between 2.92 mm and 1.85 mm Coaxial Connector 
Sub Title (in English)  
Keyword(1) Coaxial  
Keyword(2) LRL  
Keyword(3) Calibration  
Keyword(4) 2.92 mm  
Keyword(5) 1.85 mm  
Keyword(6) Between  
Keyword(7)  
Keyword(8)  
1st Author's Name Makoto Yoshida  
1st Author's Affiliation CDEXCo., Ltd. (CDEX)
2nd Author's Name Yuki Kawahara  
2nd Author's Affiliation Kawashima Manufacturing Co., Ltd. (KMCO)
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Speaker Author-1 
Date Time 2026-05-29 13:55:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2026-14 
Volume (vol) vol.126 
Number (no) no.41 
Page pp.69-74 
#Pages 6 
Date of Issue 2026-05-21 (EMCJ) 

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