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| Paper Abstract and Keywords | ||
| Presentation | 2022-10-20 15:00 A Study on Permittivity Estimation of Building Materials by Standing Wave Method Hiroki Aizawa, Toshiyuki Maeyama (Takushoku Univ.)  AP2022-143 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The authors are conducting research to estimate indoor propagation characteristics in detail using electromagnetic analysis methods. This requires detailed dielectric constants of the building materials that make up the building, such as walls and floors. Methods for estimating dielectric constant include the waveguide method and the cavity resonator method, but these methods are difficult to use for large, thick specimens such as reinforced concrete walls. Therefore, a free-space method has been proposed to measure the reflection and transmission characteristics of a sample in free space. I pay my attention to the stationary wave method in that and try the estimate of double bare dielectric constants in the reinforcing rod concrete wall of the real building. However, it is expected to be difficult to measure in a real building due to the generation of unwanted reflected waves. Therefore, by applying the following correction method, we were able to obtain a value equivalent to the complex permittivity reported in existing papers. Specifically, it compensates for the free-space propagation loss between the transmitting and receiving antennas and the multipath observed during the measurement. The correction method was confirmed by the ray trace method, and both the actual measurement and the analytical results were able to correct for this. This paper presents the details of these correction methods and the results of applying them to analytical and measured data. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Free Space Method / Standing Wave Method / Ray Tracing Method / Reinforced Concrete / Complex Relative Permittivity / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 214, AP2022-143, pp. 222-227, Oct. 2022. | |
| Paper # | AP2022-143 | |
| Date of Issue | 2022-10-12 (AP) | |
| 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 | AP2022-143 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2022-10-19 - 2022-10-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | GIFU CITY CULTURE CENTER |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Student Session, Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2022-10-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Permittivity Estimation of Building Materials by Standing Wave Method |
| Sub Title (in English) | |
| Keyword(1) | Free Space Method |
| Keyword(2) | Standing Wave Method |
| Keyword(3) | Ray Tracing Method |
| Keyword(4) | Reinforced Concrete |
| Keyword(5) | Complex Relative Permittivity |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hiroki Aizawa |
| 1st Author's Affiliation | Takushoku University (Takushoku Univ.) |
| 2nd Author's Name | Toshiyuki Maeyama |
| 2nd Author's Affiliation | Takushoku University (Takushoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2022-10-20 15:00:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2022-143 |
| Volume (vol) | vol.122 |
| Number (no) | no.214 |
| Page | pp.222-227 |
| #Pages | 6 |
| Date of Issue | 2022-10-12 (AP) |
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