2023 Fiscal Year Final Research Report
Research on cooperation between transceiver and two-dimensional waveguide and its application to IoT sensor systems
| Project/Area Number |
20H04182
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 60060:Information network-related
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| Research Institution | Kochi University of Technology (2021-2023)
Nanzan University (2020) |
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Principal Investigator |
Noda Akihito 高知工科大学, システム工学群, 准教授 (60713386)
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | 二次元通信 |
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| Outline of Final Research Achievements |
This research focused on the fact that in two-dimensional communications, where electromagnetic waves are transferred via a waveguide sheet, more functionalities can be embedded into the waveguide. As an example of our achievement, a prototype backscatter transmitter circuit achieved 3 Mb/s data rate, while RF oscillators and RF amplifiers were eliminated from the circuit, and a carrier wave (2.4 GHz, 10 dBm) was supplied in a waveguide sheet. In addition, we found a method to mitigate the degrading lowpass cutoff frequency of the larger waveguide sheet by connecting a negative capacitance circuit to the waveguide side.
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| Free Research Field |
電磁波工学
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| Academic Significance and Societal Importance of the Research Achievements |
1mW程度の消費電力で3Mb/s程度の通信が可能であることを示したことで，二次元導波路上でのワイヤレス給電方式との併用により，バッテリレスのIoT端末が導波路上に分散して連続動作させることが現実的に可能と期待される．バッテリを搭載し定期的に充電が必要な電子機器としてでなく，身の回りにメンテナンスフリーで配置される小型センサ群による高度なIoT環境の実現などの可能性を拓く成果である．
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