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Paper Abstract and Keywords
Presentation 2023-03-03 13:25
Design of dielectric loaded TM0m0 mode cylindrical cavity resonator for the evaluation of a lossy dielectric material
Yuma Kasakura, Yoshinori Kogami (Utsunomiya Univ.) MW2022-176
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, microwave technology has been employed in medical fields, and evaluation of the complex permittivity of the liquid biological tissue or its phantom is required. The TM0m0 mode cylindrical cavity resonator method, which is known as the accurate evaluation method for rod-shaped dielectric materials, has also been attracted attention as an evaluation method for liquids. However, when lossy dielectric material such as the biological tissue is loaded into the resonator, the resonance is difficult to measure because the Q factor decreases due to excessive concentration of electric field on the sample. In this paper, we propose a new resonator structure in which a low-loss dielectric ring is inserted near the cavity sidewall to suppress the electric field concentration. Then, the improvement of the Q factor was confirmed from the rigorous analysis of the resonance characteristics. The design of the resonator for the measurement is also shown.
Keyword (in Japanese) (See Japanese page) 
(in English) Liquid phantom / Complex permittivity measurement / Resonators method / Mode matching method / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 411, MW2022-176, pp. 108-113, March 2023.
Paper # MW2022-176 
Date of Issue 2023-02-23 (MW) 
ISSN 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)
Download PDF MW2022-176

Conference Information
Committee MW  
Conference Date 2023-03-02 - 2023-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Tottori Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, etc. 
Paper Information
Registration To MW 
Conference Code 2023-03-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design of dielectric loaded TM0m0 mode cylindrical cavity resonator for the evaluation of a lossy dielectric material 
Sub Title (in English)  
Keyword(1) Liquid phantom  
Keyword(2) Complex permittivity measurement  
Keyword(3) Resonators method  
Keyword(4) Mode matching method  
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1st Author's Name Yuma Kasakura  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Yoshinori Kogami  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Speaker Author-1 
Date Time 2023-03-03 13:25:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2022-176 
Volume (vol) vol.122 
Number (no) no.411 
Page pp.108-113 
#Pages
Date of Issue 2023-02-23 (MW) 


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