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All Technical Committee Conferences (All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2022-08-19 11:20 |
Tochigi | Tochigi Prefecture Industrial Center (Primary: On-site, Secondary: Online) |
Dual-Polarized Biparite Huygens'Metasaurface with Anomalous Wave Reflection for Local 5G Application Tanan Hongnara, Takayoshi Sasaki, Yoshiki Shirasawa, Katsumori Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Keizo Cho (CIT), Naobumi Michishita (NDA), Hiroaki Nakabayashi (CIT) |
[more] | |
| AP, SANE, SAT (Joint) |
2022-07-27 15:30 |
Hokkaido | Asahikawa Taisetsu Crystal Hall (Primary: On-site, Secondary: Online) |
Time Reversal Algorithm Position Estimation of Cylindrical Target/s Using Direct Path and Multipath Cross-correlation Hanns Christian Jaurigue Chua, Keizo Cho, Hiroaki Nakabayashi, Koji Suizu (Chiba Inst. of Tech) |
[more] | |
| AP, SANE, SAT (Joint) |
2022-07-29 12:40 |
Hokkaido | Asahikawa Taisetsu Crystal Hall (Primary: On-site, Secondary: Online) |
A Study of equivalent circuit parameters of Huygens' metasurface lense capable of changing transmission phase with low loss Maria Ishida, Keizo Cho (Chiba Inst of Tech), Naobumi Michishita (National Defense Academy), Tanan Hongnara, Takayoshi sasaki, Warangkana Chaihongsa, Keisuke Sato, Ichiro Oshima (DKK), Hiroaki Nakabayashi (Chiba Inst of Tech) |
[more] | |
| AP, WPT (Joint) |
2022-01-20 09:00 |
Tottori | Kenmin-Fureai-Kaikan (Primary: On-site, Secondary: Online) |
A Study on Observation of Inside Material with Transparency Characteristics by Using THz-POLSAR Riku Fujiwara, Hiroaki Nakabayashi, Koji Suizu, Keizo Cho (CIT)  AP2021-134 |
Terahertz waves, which lie between radio waves and light, are expected to be applied to the field of sensing by taking a... [more] | AP2021-134 pp.1-6 |
| AP, WPT (Joint) |
2022-01-20 14:20 |
Tottori | Kenmin-Fureai-Kaikan (Primary: On-site, Secondary: Online) |
[Invited Lecture]
A Study of Error Mitigation Methods Using Stochastic Space Characteristics in Radio Wave Propagation Simulation Tomoharu Nakamura, Hiroaki Nakabayashi (CIT) AP2021-144 |
Radio propagation simulations are divided into site-general and site-specific methods, and are widely used in the constr... [more] | AP2021-144 pp.53-58 |
| AP, RCS (Joint) |
2021-11-11 09:55 |
Nagasaki | NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
Prototype Evaluation of Frequency Dispersive Phase Shifter for Dual Band Base Station Antenna Toshiki Soma, Keizo Cho (Chiba Inst. Tech.), Naobumi Michishita (National Defense Academy), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Hiroaki Nakabayashi (Chiba Inst. Tech.) AP2021-110 |
Multi-band base station antennas have the problem that interference to adjacent areas increases in the low frequency ban... [more] | AP2021-110 pp.56-60 |
| MW, AP (Joint) |
2021-09-09 14:00 |
Online | Online | Matching Circuit Design of Frequency Dispersive Phase Shifter for Dual Band Base Station Antenna Toshiki Soma, Keizo Cho (Chiba Inst. Tech.), Naobumi Michishita (National Defense Academy), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Hiroaki Nakabayashi (Chiba Inst. Tech.) AP2021-56 |
In a base station antenna that shares multiple frequency bands, The direction of radiation is the same in the shared fre... [more] | AP2021-56 pp.1-5 |
| AP, SANE, SAT (Joint) |
2021-07-28 10:15 |
Online | Online | [Invited Lecture]
A Study on Stochastic Characteristics of Short Term Variation in Low Base Station Antenna Height. Kazuki Machida, Hiroaki Nakabayashi (CIT) AP2021-26 |
A study was conducted to clarify the stochastic characteristics of received level short term variations in low base stat... [more] | AP2021-26 pp.13-18 |
| AP | 2021-04-16 13:00 |
Hyogo | Kinosaki International Arts Center (Primary: On-site, Secondary: Online) |
Position Estimation of Point Source Targets Using Compressed Sensing in THz Imaging Rio Yanagi, Keizo Cho, Hiroaki Nakabayashi, Koji Suizu (CIT) AP2021-4 |
In terahertz (THz) imaging, synthetic aperture array is attractive for reducing measurement time and increasing spatial ... [more] | AP2021-4 pp.17-22 |
| AP, WPT (Joint) |
2020-01-24 16:35 |
Kagawa | Sunport Hall Takamatsu | A study on Element Arrangement Optimization of Spatial Polarized Massive MIMO and the Effectiveness Takahiro Matsumoto, Kiyoaki Itoi, Hiroaki Nakabayashi (CIT) AP2019-179 |
Currently, various studies of 5G have been studied for introduction in 2020. In 5G, massive MIMO technology has been stu... [more] | AP2019-179 pp.159-164 |
| AP, WPT (Joint) |
2020-01-24 17:00 |
Kagawa | Sunport Hall Takamatsu | A Study on Mean Antenna Gain of Massive MIMO in Line-of-Sight Street Canyon Environment Yuya Tashiro, Eita Utsuki, Kazuki Machida, Hiroaki Nakabayashi (Chiba Inst. of Tech.) AP2019-180 |
In 5th generation mobile communication systems, massive MIMO has been studied as one of the elemental technologies to re... [more] | AP2019-180 pp.165-170 |
| AP, RCS (Joint) |
2019-11-21 11:20 |
Saga | Saga Univ. | Equivalent circuit parameters reducing beam squint of left-handed leaky wave antenna Kazuki Terada, Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA), Ichiro Oshima (DKK) AP2019-122 |
A rod-like leaky wave antenna composed of CRLH transmission lines has been proposed as a base station antenna for small ... [more] | AP2019-122 pp.91-94 |
| AP, RCS (Joint) |
2019-11-21 15:15 |
Saga | Saga Univ. | [Invited Lecture]
Results of applying spatial average MUSIC using multiple virtual arrays to THz-TDS measurement Kazuki Watakabe, Keizo Cho, Hiroaki Nakabayashi, Koji Suizu (CIT) AP2019-126 RCS2019-223 |
In synthetic aperture terahertz time-domain spectroscopy (THz-TDS) imaging, the correlation of the waves reflected from ... [more] | AP2019-126 RCS2019-223 pp.107-112(AP), pp.115-120(RCS) |
| MW, AP (Joint) |
2019-09-20 11:20 |
Kanagawa | JAXA (Sagamihara) | [Tutorial Lecture]
Application of Machine Learning to Propagation Loss Prediction
-- Bridge Connecting Propagation Models -- Hiroaki Nakabayashi (Chiba Tech) AP2019-77 |
On propagation loss prediction used for link design and station installation design in land mobile communications, in or... [more] | AP2019-77 pp.43-47 |
| AP (2nd) |
Overseas | Hotel Istana, Kuala Lumpur | Influence of the location of virtual linear array on position estimation using MUSIC algorithm applied to arc array synthetic aperture radar imaging Kazuki Watakabe, Keizo Cho, Hiroaki Nakabayashi (Chiba Institute of Technology Univ.) |
In synthetic aperture terahertz time domain spectroscopy (THz-TDS) imaging, the image of closely spaced targets is degra... [more] | ||
| AP (2nd) |
Overseas | Hotel Istana, Kuala Lumpur | Power transmission efficiency of magnetic material loaded solenoid in the vicinity of circuit ground Yoshihiro Nakamura, Cho Keizo, Hiroaki Nakabayashi (Chiba Institute of Tech) |
Small solenoid whose diameter is about 1mm has been proposed for the NFC antenna. When the NFC antenna is installed to t... [more] | ||
| AP (2nd) |
Overseas | Hotel Istana, Kuala Lumpur | Phase Variation Analysis of Leaky Wave Antenna Composed of CRLH Transmission Line Using Equivalent Circuit Kazuki Terada, Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK) |
A leaky wave antenna configured by CRLH transmission lines has been proposed. There is a problem that the direction of t... [more] | ||
| AP (2nd) |
2018-12-06 14:05 |
Kagoshima | Amami-city AiAi Hiroba | Observation of Target with various structure in THz-POLSAR Katsui Arahara, Hiroaki Nakabayashi, Koji Suizu, Keizo Cho (CIT) |
Terahertz wave is electromagnetic wave which have both characteristics of radio wave and light wave, and it is possible ... [more] | |
| AP (2nd) |
2018-05-31 10:15 |
Overseas | The University of Da nang, University of Science and Technology | A Study of User Capacity for Massive MIMO in Urban Street Canyon Environment Takuya Nitsu, Hiroaki Nakabayashi (Chiba Inst.Tech) |
The purpose of this study is to indicate a user capacity for a massive MIMO using a block diagonalization (BD) method in... [more] | |
| AP, RCS (Joint) |
2017-11-08 14:55 |
Fukuoka | Fukuoka University | [Invited Lecture]
Channel Prediction in LOS Environment by AR Model Using Estimation of LOS Propagation Parameters Naoto Setoguchi, Hiroaki Nakabayashi, Keizo Cho (Chiba Inst.Tech.) AP2017-117 RCS2017-214 |
In MIMO technology, feedback delay of channel state information is regarded as a cause of deterioration of transmission ... [more] | AP2017-117 RCS2017-214 pp.49-54(AP), pp.53-58(RCS) |
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