| Presentation | 2021-12-16 Fast and Wideband Measurement of the Complex EM-Parameters of Absorbers with Open-ended Coaxial Probe Hao Wu, Chun-Ping Chen, Liangchao Jiang, Jiaxing Fan, Tetsuo Anada, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, to keep up with the rapid increase in base stations and ever-growing bandwidth usage and speed requirement of the new generation wireless communication system, a drastic increase in frequency bands is in demand. Therefore, dynamic spectrum access techniques are used to solve the problem. To mitigate the interference among adjacent radio systems operating in the same frequency band, wave absorbers are often exploited indoors and outdoors. To monitor the status of the absorbers in use, a non-destructive and rapid detection technique of the complex EM-parameters of the high-loss absorbers is required. The open-ended coaxial probe measurement method based on the conventional spectral domain theory model is effective for measuring infinite planar sheet-shaped samples, however, it cannot be applied to finite-sized or curved samples. Although it is possible to measure samples of finite size or curved surface using numerical calculation methods such as FEM and FDTD, the long calculation time is a technical problem. In the previous research, we proposed a neural network (ANN: Artificial Neural Network) theoretical model based on a numerical calculation method at a single frequency. In this paper, we propose a novel ANN for wideband measurement by setting the frequency as an input parameter. Experiments are carried out to validate the proposed measurement method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Complex permeability / Complex permittivity / Open-ended coaxial probe / Nondestructive measurement / ANN / Wideband |
| Paper # | MW2021-88 |
| Date of Issue | 2021-12-09 (MW) |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2021/12/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kawasaki City Industrial Promotion Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave/Presentation and Award Ceremony of SDC |
| Chair | Noriharu Suematsu(Tohoku Univ.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Hideyuki Nakamizo(Mitsubishi Electric) |
| Secretary | Tadashi Kawai(Saitama Univ.) / Kensuke Okubo(Toshiba) / Hideyuki Nakamizo |
| Assistant | Naoki Hasegawa(Softbank) / Kosuke Katayama(NIT, Tokuyama College) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fast and Wideband Measurement of the Complex EM-Parameters of Absorbers with Open-ended Coaxial Probe |
| Sub Title (in English) | |
| Keyword(1) | Complex permeability |
| Keyword(2) | Complex permittivity |
| Keyword(3) | Open-ended coaxial probe |
| Keyword(4) | Nondestructive measurement |
| Keyword(5) | ANN |
| Keyword(6) | Wideband |
| 1st Author's Name | Hao Wu |
| 1st Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| 2nd Author's Name | Chun-Ping Chen |
| 2nd Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| 3rd Author's Name | Liangchao Jiang |
| 3rd Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| 4th Author's Name | Jiaxing Fan |
| 4th Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| 5th Author's Name | Tetsuo Anada |
| 5th Author's Affiliation | Kanagawa University(Kanagawa Univ.) |
| Date | 2021-12-16 |
| Paper # | MW2021-88 |
| Volume (vol) | vol.121 |
| Number (no) | MW-303 |
| Page | pp.pp.19-24(MW), |
| #Pages | 6 |
| Date of Issue | 2021-12-09 (MW) |