| Project/Area Number |
21K14206
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 21060:Electron device and electronic equipment-related
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Pang Jian 東京工業大学, 工学院, 特任准教授 (00897001)
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| Project Period (FY) |
2021-04-01 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | mmW / transceiver / phased-array / cmos / wireless / 5G / B5G / calibration / Millimeter-wave / Phased-array / CMOS / Transceiver / Distributed array |
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| Outline of Research at the Start |
This research will implement the CMOS mmW integrated circuits for the distributed array. A low-latency synchronization technique will be researched to construct fast synchronization between multiple distributed arrays. A high-accuracy beam control system will be developed to reject the radiations.
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| Outline of Final Research Achievements |
This research introduces low-cost, reconfigurable mmW distributed phased-array transceivers. The deployment of such arrays is much more flexible compared with centralized arrays. To realize compact, low-cost characteristics, this research introduces the neutralized bi-directional architecture. The phased-array gain and stability are enhanced with a minimized area and cost. To maintain high-efficiency characteristics, this research explores Doherty PA with higher efficiency at backoff. To minimize the unwanted radiation, this research first introduces a phase shifter with phase compensation network. The errors are therefore reduced. Furthermore, this research introduces on-chip magnitude and phase detection circuits for correcting the errors between channels.
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| Academic Significance and Societal Importance of the Research Achievements |
The millimeter-wave phased-array is significant in wireless communication. However, conventional centralized phased-arrays cannot deal with the complex environments. In this research, the distributed phased-array transceivers are proposed with less cost and compact size.
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