Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP |
2024-03-15 14:00 |
Fukui |
UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Eigenvalue Analysis of Radio Propagation Utilizing Hollow Cylindrical Concrete Structures in Sea Water Nozomu Ishii, Naoki Kuzuu (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiaowei Yuan (Tohoku Inst. Tech.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2023-217 |
[more] |
AP2023-217 pp.91-96 |
AP |
2024-03-15 14:25 |
Fukui |
UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Distribution of Electromagnetic Fields of Radio Propagation Utilizing Hollow Cylindrical Concrete Structures in Sea Water Qiaowei Yuan, Norihito Yamato (Tohoku Inst. Tech), Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2023-218 |
[more] |
AP2023-218 pp.97-101 |
AP |
2024-03-15 15:00 |
Fukui |
UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Coaxial-Mode Analysis of Radio Propagation Utilizing Hollow Cylindrical Concrete Structures in Seawater Jialu Wang, Qiang Chen (Tohoku Univ.), Nozomu Ishii (Niigata Univ.), Qiaowei Yuan (Tohoku Inst. Tech.), Masaharu Takahashi (Chiba Univ.) AP2023-219 |
Underwater radio communications leverage the coaxial structure formed by the hollow cylindrical concrete foundation of o... [more] |
AP2023-219 pp.102-104 |
AP |
2024-03-15 15:25 |
Fukui |
UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Frequency Analysis of Radio Propagation Utilizing Hollow Cylindrical Concrete Structures in Sea Water Kaito Ishikawa, Masaharu Takahashi (Chiba Univ.), Nozomu Ishii (Niigata Univ.), Qiaowei Yuan (Tohoku Inst. Tech.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2023-220 |
As one of the applications of electromagnetic waves in the ocean, we conducted a basic study of a system for communicati... [more] |
AP2023-220 pp.105-108 |
WPT |
2024-03-14 10:40 |
Kyoto |
Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
Enhancing Magnetic Field Measurement Accuracy in Wireless Power Transfer Systems Yunchong Tang, Qiaowei Yuan (Tohtech) WPT2023-37 |
In the development of Wireless Power Transfer (WPT) systems, it is essential to ensure that unwanted radiation meets the... [more] |
WPT2023-37 pp.12-15 |
AP |
2023-10-19 10:00 |
Iwate |
Iwate University (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Enhanced Accuracy in AR-based Electromagnetic Field Visualization with Confirming Probe’s Performance Yunchong Tang, Qiaowei Yuan, Norihito Yamato (Tohtech) AP2023-95 |
Visualizing electromagnetic field (EMF) offers an intuitive method for the general public and students to comprehend the... [more] |
AP2023-95 pp.37-40 |
AP |
2023-10-19 13:00 |
Iwate |
Iwate University (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Performance Evaluation of Three Directivity Control Techniques for Increasing Number of Elements in Array Antennas
-- Comparison of analysis using Array Factor, E-MIMO, and Retrodirective methods -- Hinata Kato, Qiaowei Yuan (Tohoku Institute of Technology) AP2023-113 |
The E-MIMO principal method was developed by this laboratory to calculate the maximum efficiency of MIMO systems, and it... [more] |
AP2023-113 pp.94-95 |
WPT |
2023-03-17 12:35 |
Kyoto |
Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Creating a 13.56 MHz matching circuit Hinata Kato, Tang Yunchong, Norihito Yamato, Kazuma Hariu, Hiroto Sato, Qiaowei Yuan (Tohtech) WPT2022-49 |
In wireless power transmission technology, matching circuits are very important because power transmission efficiency de... [more] |
WPT2022-49 pp.89-90 |
WPT (2nd) |
2022-12-05 - 2022-12-06 |
Kyoto |
Uji Obaku Plaza Kihada Hall, Uji Campus, Kyoto University (Primary: On-site, Secondary: Online) |
High Gain Patch Array Antenna Covered by Dielectric Slab for Wireless Power Transfer Systems Yukina Ono, Keisuke Konno, Qiang Chen (Tohoku Univ.), Qiaowei Yuan (Tohoku Institute of Technology) |
High gain antennas such as array antennas are necessary for efficient wireless power transfer systems. In order to in-cr... [more] |
|
WPT (2nd) |
2022-12-05 - 2022-12-06 |
Kyoto |
Uji Obaku Plaza Kihada Hall, Uji Campus, Kyoto University (Primary: On-site, Secondary: Online) |
Automatized AR-based EM Field Visualization Technology Yunchong Tang, Qiaowei Yuan (Tohtech) |
It is necessary to create an intuitive way for consumers and public people to alleviate their concerns about the safety ... [more] |
|
WPT |
2021-03-04 10:50 |
Online |
Online |
Array antenna beamforming according to MIMO-WPT maximum power transfer Qiaowei Yuan (TOHTECH) WPT2020-36 |
[more] |
WPT2020-36 pp.14-19 |
SR |
2019-01-24 13:05 |
Fukushima |
Corasse, Fukushima city (Fukushima prefecture) |
[Invited Talk]
Full-Duplex MIMO Scheme Using Array Antennas Naoki Honma (Iwate Univ.), Qiang Chen (Tohoku Univ.), Qiaowei Yuan (NIT, Sendai College), Nobuyasu Takemura (NIT) SR2018-102 |
[more] |
SR2018-102 pp.35-40 |
WPT, AP (Joint) |
2019-01-18 13:40 |
Aichi |
Toyota Automobile Museum |
Maximum Transfer Efficiency Obtained by Impedance Matching Condition for Wireless Power Transfer System Qiaowei Yuan (NIT, Sendai College) WPT2018-59 |
[more] |
WPT2018-59 pp.27-30 |
WPT (2nd) |
2018-11-02 - 2018-11-04 |
Miyagi |
Tohoku University |
The Fundamental Experiment of Microwave Wireless Power Transmission to UAV Yudai Hashimoto (NTT Communications Corp.), Qiaowei Yuan, Takumi Aoki (NIT, Sendai College) |
The research on wireless power transmission using microwaves in recent years has been advanced greatly. In this paper, f... [more] |
|
MW, WPT |
2018-04-27 13:55 |
Tokyo |
Kikai-Shinko-Kaikan Building |
Maximum Transfer Efficiency for Multiple-Input Multiple-Output Wireless Power Transfer System Takumi Aoki, Qiaowei Yuan (SNIT), Duong Quang Thang, Minoru Okada (NAIST) WPT2018-3 MW2018-3 |
In this paper, a novel universal method to calculate the maximum power transfer efficiency for arbitrary multiple input ... [more] |
WPT2018-3 MW2018-3 pp.9-11 |
WPT |
2018-03-02 14:00 |
Kyoto |
Kyoto Univ. Uji Campus |
Fundamental Study on Flight of Drone Powered by Microwave Energy
-- Rectenna Design Approach with Considering Fluctuation of Load and Input power -- Yudai Hashimoto, Qiaowei Yuan (NIT, Sendai College), Noki Shinohara (Kyoto University) WPT2017-71 |
The research on wireless power transmission using microwaves in recent years has been advanced greatly. The technology a... [more] |
WPT2017-71 pp.23-26 |
AP |
2018-02-16 14:55 |
Tokyo |
Kozo Keikaku Engineering, Inc. |
Self-Interference Suppression of Receiving Antenna Array Integrated with 180 Degree Hybrid Circuits for MIMO Full-Duplex System Qiaowei Yuan, Riri Niizeki, Yudai Hashimoto (NIT, Sendai Collge), Yoshiyuki Yamamoto (Tohoku Univ.), Naoki Honma (Iwate Univ.), Quiang Chen (Tohoku Univ.) AP2017-187 |
Self-Interference suppression is essential for realizing the MIMO Full-Duplex system. The self-interference suppression ... [more] |
AP2017-187 pp.63-66 |
AP |
2017-08-25 10:55 |
Hokkaido |
National Institute of Technology, Hakodate College |
Experimental Evaluation of Self-Interference Suppression Method Using 180 Degree Hybrid Circuit in MIMO Full-Duplex System Yoshiyuki Yamamoto (Tohoku Univ.), Riri Niizeki, Yudai Hashimoto (NIT, Sendai Collge), Naoki Honma (Iwate Univ.), Qiaowei Yuan (NIT, Sendai Collge), Quiang Chen (Tohoku Univ.) AP2017-82 |
A self-interference suppression is essential for realizing the full-duplex system. We have proposed the self-interferenc... [more] |
AP2017-82 pp.75-80 |
EE, WPT, IEE-SPC [detail] |
2017-07-27 10:45 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
[Invited Lecture]
6.78MHz-band rectifier with impedance matching circuit considering intrinsic ohmic loss Satoshi Suzuki (Tohoku Univ.), Shoto Ueda (Yokogawa Rental & Leese), Qiaowei Yuan (NIT, Sendai), Qiang Chen (Tohoku Univ.) EE2017-13 WPT2017-18 |
Nowadays, Wireless Power Transfer (WPT) becomes very popular. It is very important to make the efficiency of WPT system ... [more] |
EE2017-13 WPT2017-18 pp.15-18 |
WPT, MW |
2017-04-28 14:00 |
Tokyo |
Kikai-Shinko Kaikan, B2-1 |
Study of Near-Field Wireless Power Transfer System Using Reconfigurable Antenna Shun Maruyama, Qiang Chen (Tohoku Univ.), Qiaowei Yuan (Sendai College) WPT2017-2 MW2017-2 |
[more] |
WPT2017-2 MW2017-2 pp.5-8 |