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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 | 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 |
| AP | 2017-08-25 13:45 |
Hokkaido | National Institute of Technology, Hakodate College | Horizontally Polarized Dual-band Sector Antenna using FSR Comprising Alternately Placed Gang Buster Elements Masato Hasegawa, Keizo Cho (CIT), Atsuya Ando (NTT) AP2017-86 |
This paper, investigates a configuration of 3.5GHz/2GHz band horizontally polarized sector antenna using Frequency Selec... [more] | AP2017-86 pp.99-103 |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
3.5/2GHz Dual-band Horizontally Polarized Sector Antenna Equipping Alternately Placed FSR Masato Hasegawa, Keizo Cho (CIT), Atsuya Ando (NTT) |
This paper proposes a 3.5/2GHz dual-band horizontally polarized sector antenna using frequency selective reflector (FSR)... [more] | |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
Effectiveness of Applying Folded Meander Loop Parasitic Elements to Enlarge Operating Frequency Band of Dual Polarized Reflector Backed Dipole Antenna. Mamoru Yamaguchi, Keizo Cho (CIT), Tatsuhiko Yoshihara, Taisuke Ihara (NTT DOCOMO) |
This paper proposes a reflector backed dipole antenna equipping folded meander loop parasitic elements which can enlarge... [more] | |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
Identification of Periodic Structure Target by Broadband Polarimetry Using Terahertz Radiation Yuki Kamagata, Hiroaki Nakabayashi, Koji Suizu, Keizo Cho (Chiba Inst. Tech.) |
This study demonstrates high precision non-destructive inspection of periodic linear targets using broadband terahertz p... [more] | |
| AP | 2017-05-19 11:20 |
Miyazaki | Hotel MERIEGES | Bandwidth Enlargement Maintaining Low HPBW Variation in Dual Band Reflector Backed Dipole Antenna Composed of Folded FSR Keizo Cho, Yusuke Tanizawa (Chiba Inst. of Tech.), Atsuya Ando (NTT) AP2017-39 |
Multi-band antennas have been popularly used as base station antennas for mobile communication systems. We have proposed... [more] | AP2017-39 pp.91-96 |
| AP (2nd) |
2017-01-26 - 2017-01-27 |
Overseas | Malaysia-Japan International Institute of Technology (MJIIT) | Prediction Accuracy Using Theoretical Autocorrelation Coefficient of Fading Channel in Line-of-Sight Environment Naoto Setoguchi, Hiroaki Nakabayashi, Keizo Cho (Chiba Inst.Tech.) |
Abstract In this report, we investigate prediction accuracy of fading channels in line-of-sight (LOS) environment when ... [more] | |
| AP | 2016-03-10 10:55 |
Yamanashi | Isawa Onsen (Kanpo no Yado) | Equivalent Circuit Design of Unit Cell in Frequency Dispersive Phase Shifter Enlarging Frequency Dispersion of Phase Characteristics for Multi-Band Base Station Antenna Yasuhito Yanagisawa, Ryuji Kataoka, Keizo CHO (CIT), Naobumi Michishita (NDA), Ichiro Oshima (DKK) AP2015-205 |
Frequency dispersive phase shifter for a multi-band base station antenna, which is capable of increasing the communicati... [more] | AP2015-205 pp.7-11 |
| AP | 2016-03-10 13:10 |
Yamanashi | Isawa Onsen (Kanpo no Yado) | Relationship Between Antenna Configuration and Radiation Characteristics of Corner Reflector Antenna Composed of Frequency Selective Reflector Yusuke Tanizawa (Chiba Institute of Tech), Hideya So, Atsuya Ando (NTT), Keizo Cho (Chiba Institute of Tech) AP2015-208 |
Multi-band antennas have been popularly used as base station antennas for mobile communications systems. We have propose... [more] | AP2015-208 pp.25-30 |
| AP | 2016-03-10 15:35 |
Yamanashi | Isawa Onsen (Kanpo no Yado) | Wireless Power Transfer Characteristics Depending on Parasitic Coil Arrangement Closely Placed to TX Coil Using Identical Coil Structure Naoya Takahashi, Junya Kurokawa, Keizo Cho, Hiroaki Nakabayashi (CIT) AP2015-213 |
Wireless power transmission using a resonance method has received much attention triggered by the MIT’s experiment, beca... [more] | AP2015-213 pp.53-56 |
| AP (2nd) |
2016-02-29 15:25 |
Overseas | Telecommunications University, Nha Trang, Vietnam | Prototype evaluation of Reflector Backed Dipole antenna with Folded Loop-shaped Parasitic Elements Takayoshi Sasaki, Keizo Cho (Chiba Inst. of Tech.), Tatsuhiko Yoshihara, Taisuke Ihara (NTT DOCOMO) |
It has been reported that loading the Loop-shaped Parasitic Element can expand the operating frequency band of the Refle... [more] | |
| AP, RCS, WPT, SAT (Joint) |
2015-11-05 15:00 |
Okinawa | Okinawa Prefectural Museum & Art Museum | Effect by Folded Loop Elements for Reflector Backed Dipole Antenna Using Loop Parasitic Elements Takayoshi Sasaki, Keizo Cho (Chiba Inst. of Tech.), Taisuke Ihara, Tatsuhiko Yoshihara (NTT DOCOMO) AP2015-140 |
It has been reported that loading the Loop-shaped Parasitic Element can expand the operating frequency band of the Refle... [more] | AP2015-140 pp.173-178 |
| AP | 2015-07-31 10:20 |
Hokkaido | Wakkanai Sougou Bunka Center | Dependency of Frequency Selective Reflector Element Shape on Radiation Characteristics of FSR Backed Dipole Antenna Yusuke Tanizawa, Keizo Cho (Chiba Institute of Tech), Hideya So, Atsuya Ando (NTT) AP2015-52 |
Multi-band antennas have been popularly used as base station antennas for mobile communications systems. In this researc... [more] | AP2015-52 pp.71-76 |
| AP | 2015-01-23 13:55 |
Ehime | Ehime University | Bandwidth Enlargement of Reflector Backed Dipole Antenna Using Loop Parasitic Elements Takayoshi Sasaki, Keizo Cho (Chiba Inst. of Tech.), Taisuke Ihara, Tatsuhiko Yoshihara (NTT DOCOMO) AP2014-181 |
[more] | AP2014-181 pp.115-120 |
| AP | 2014-05-29 10:10 |
Okinawa | Okinawa Industory Support Center | Operating Mechanism of Quad-Band Printed Antenna for M2M Applications Makoto Sumi (NTT DOCOMO), Keizo Cho (Chiba Inst. of Tech.) AP2014-20 |
This paper investigates the operating mechanism of our proposed small multiband printed antenna for wireless telecommuni... [more] | AP2014-20 pp.5-10 |
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