2023 Fiscal Year Final Research Report
Low Power On-chip 150GHz Array Antenna with Injection-Locked Active Cell
| Project/Area Number |
21K04171
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 21060:Electron device and electronic equipment-related
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| Research Institution | Shizuoka Institute of Science and Technology |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 短ミリ波 / 低消費電力 / アクティブアレーアンテナ / 発振器 / 注入同期 |
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| Outline of Final Research Achievements |
We realized an active antenna unit in the 150-GHz band, and studied how to verify the operation as an antenna array by converting it into an array.
The following are the results of this study. (1) A prototype low-power oscillator was fabricated using GF's 45nm SOI-CMOS, and a 148GHz oscillator was realized with a power consumption of 1.3mW. (2) To realize a compact active antenna module, we proposed to share the resonator and antenna of the oscillator, and realized a 148-GHz transmitter with a chip size of 0.3 mm × 0.24 mm including the antenna. (3) We have arrayed the proposed active modules in a 2 × 2 configuration and confirmed that two or more modules can be synchronized by injected synchronous signals. The power consumption was 1.3mW.
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| Free Research Field |
無線通信
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| Academic Significance and Societal Importance of the Research Achievements |
無線通信は現代社会において必要不可欠なものとなっており多くの通信が無線化されている．ミリ波帯での高速無線通信用の回路検討は広くなされており，60GHz帯は無線LANなどでも利用されるようになってきた．短ミリ波帯は今後の無線通信において広く使われていく領域と考えられる．また，第5世代携帯電話での検討で見られるようにMassive-MIMOなどアレーアンテナを用いた構成は必須になっていくと考えられる．短ミリ波領域ではローカル信号周波数も非常に高くなり従来型のアレー回路は構成が困難であると考えられ，本研究成果は，短ミリ波領域におけるアレーアンテナシステムの実現に寄与できると考えられる．
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