Paper Abstract and Keywords |
Presentation |
2021-10-07 14:25
[Poster Presentation]
Examination of Detection Indicators for Distance Estimation of a Sensing Technique Based on Variation of Antenna Reflection Characteristics Kazuki Shintani (Doshisha Univ.), Satoru Shimizu (Doshisha Univ./ATR), Hisato Iwai, Shinsuke Ibi (Doshisha Univ.), Takuya Kurihara, Yoshinori Suzuki (ATR) AP2021-85 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
When an object such as a human body exists near an antenna, various changes occur in the antenna characteristics. Utilizing the characteristics, sensing of objects could be realized and several studies on the technique have been reported. In this paper, we analyzed the antenna characteristics when a human body is near an antenna by the FDTD method, aiming at development of a proximity sensor that detects the existence of a human body and/or the distance to the position of the human body. For the purpose of detecting the distance between the human body and the antenna, we examined the return loss difference, the distance of the reflectance coefficient, and the Poincare distance as a detection index. As a result of the analysis, the Poincare distance changes monotonically depending on the distance, and it has a broadband characteristic with the frequency. Therefore, we concluded it is suitable as an index to detect the distance from the antenna to the human body. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Proximity sensor / Human body sensing / FDTD / Poincare distance / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 191, AP2021-85, pp. 68-69, Oct. 2021. |
Paper # |
AP2021-85 |
Date of Issue |
2021-09-30 (AP) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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AP2021-85 |
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