IEEE MTT-S Kansai Chapter Chair 楢橋 祥一

  「IEEE MTT-S Kansai Chapter 特別講演」 開催案内  

Internet of Thingsで利用されるデバイスにおいて、電池寿命の制約に対する
などについて、アメリカ・West Virginia UniversityのProf. Mingyu Luに、

●主催: IEEE MTT-S Kansai Chapter
●協賛: 電子情報通信学会 無線電力伝送(WPT)研究会
●日時: 2022年3月8日(火) 9:00〜9:55
●場所: Zoom Webinarによるオンライン開催
●参加資格: どなたでも参加できます。
●参加費: 無料です。

●事前申し込み:  文末にある「聴講について」の案内をご覧下さい。

・Title: Wireless Power Transmission based on Retro-Reflective Beamforming
・講師: Prof. Mingyu Lu (West Virginia University, USA)
 ※ 講演は英語のみとなります。

With the rapid development of Internet of Things, a vast number of small, 
low-cost, and low-power mobile electronic devices, such as radio frequency 
identification tags and wireless sensors, will become integral parts of our 
society in the near future. Supplying electrical power to these devices 
wirelessly would eliminate/relieve their battery life limitation, and therefore 
is envisioned to be one of the enabling technologies for the next-generation 
Internet of Things. Since wireless power delivery must be dedicated to the 
designated receivers in space, it is inevitable to employ one narrow electromagnetic 
beam as the carrier of wireless power toward each mobile device. The retro-reflective 
beamforming technique has excellent potential to accomplish efficient wireless 
power transmission in the context of Internet of Things, as it is capable of 
keeping track of multiple mobile devices and then generating wireless power 
beams to the devices accordingly. The primary merit of retro-reflective beamforming 
technique is that wireless power transmission is augmented by radar tracking. 
Specifically, wireless power transmission is initiated by pilot signals broadcasted 
from wireless power receiver(s); and in response to the pilot signals, a wireless 
power transmitter delivers directional microwave power beams to the receiver(s). 
This presentation reviews our past, ongoing, and future research efforts on 
wireless power transmission based on retro-reflective beamforming. This talk 
starts with the fundamental principles and a brief history of retro-reflective 
beamforming technique. Next, the pros and cons of retro-reflective beamforming 
are analyzed via comparison with other wireless power transmission techniques. 
Plentiful theoretical and experimental results collected in our research demonstrate 
that the retro-reflective beamforming scheme enables microwave power beams to 
follow the location of mobile wireless power receiver(s) dynamically as long as 
the receiver(s) broadcast pilot signals periodically. The last part of the 
presentation discusses the challenges pertinent to the practical application 
of retro-reflective beamforming technique.



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[注]  2022年3月7日、8日(月、火)に開催されます電子情報通信学会 無線電力伝送(WPT)研究会とは別に聴講登録が必要です。