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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 98  /  [Next]  
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) AP2022-66
 [more] AP2022-66
pp.11-16
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) AP2022-43
This research proposes the usage of the time-reversal algorithm to estimate one and two passive thin cylindrical targets... [more] AP2022-43
pp.50-55
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) AP2022-58
Huygens metasurfaces have attracted attention as a method of constructing thin lenses. In this report, we present the re... [more] AP2022-58
pp.135-139
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, 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 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 2020-05-21
11:25
Okinawa Tiruru Okinawa (Naha-city)
(Cancelled, technical report was not issued)
An arrangemant of small solenoid antenna improving transmission efficiency for near field communication
Yuya Kira, Yoshihiro Nakamura, Keizo Cho (Chiba Inst.of Tech.)
 [more]
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)
AP, RCS
(Joint)
2019-11-22
10:55
Saga Saga Univ. [Tutorial Lecture] Application of Meta-material to Base Station Antennas for Mobile Communication Systems
Keizo Cho (Chiba Inst. Tech), Naobumi Michishita (National Defense Academy), Ichiro Oshima (DKK) AP2019-133 RCS2019-228
 [more] AP2019-133 RCS2019-228
pp.145-150(AP), pp.139-144(RCS)
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 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 2019-02-22
14:25
Osaka Sumitomo Electric Industries (Osaka Works) [Invited Lecture] CRLH Transmission Line Leaky Wave Antenna with Dual Band and Dual Polarized Wave by Grounded Coplanar Transmission Line
Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Naobumi Michishita (NDA), Keizo Cho (CIT) AP2018-183
The authors have developed a left-handed leaky wave sector antenna with a grounded coplanar line so far. In this report,... [more] AP2018-183
pp.77-82
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)
2018-05-30
09:30
Overseas The University of Da nang, University of Science and Technology Dual-band reflector backed dipole antenna loading choke equipped meander-loop parasitic elements
Mamoru Yamaguchi, Keizo Cho (Chiba Inst. of Tech.), Tatsuhiko Yoshihara, Taisuke Ihara (NTT DOCOMO)
We have reported a base station antenna configuration that can expand the operating bandwidth of a reflector backed dipo... [more]
AP
(2nd)
2018-05-30
15:00
Overseas The University of Da nang, University of Science and Technology Magnetic field distribution characteristic of linearly aligned magnetic material-loaded solenoid array
Yoshihiro Nakamura, Keizo Cho (Chiba Inst. of Tech.)
Due to the demand of miniaturization and high functionality for mobile terminals, miniaturization of a near field commun... [more]
AP 2018-04-19
14:25
Tokyo Hachijomachi-Shokokai Expanding lower side operating frequency of microstrip antenna using double layaer parasitic elements
Keizo Cho, Takashi Maki, Takuma Asano (Chiba Inst. of Tech.), Tatsuhiko Yoshihara, Taisuke Ihara (NTT DOCOMO) AP2018-2
 [more] AP2018-2
pp.7-12
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)
AP 2017-08-25
13:20
Hokkaido National Institute of Technology, Hakodate College Dual-Polarized Left-Handed Leaky Wave Antenna Using Grounded Coplanar Transmission Line
Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (Denki Kogyo), Naobumi Michishita (NDA), Keizo Cho (CIT) AP2017-85
In this report, we propose a leaky-wave dual-polarized sector antenna using a CRLH line with grounded coplanar line , as... [more] AP2017-85
pp.93-98
 Results 1 - 20 of 98  /  [Next]  
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