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Committee Date Time Place Paper Title / Authors Abstract Paper #
SRW 2020-06-29
Online Online A Study on High-speed Reception Gain Control Method for Immediate Synchronization Signal Analysis of VHF-band Broadband Mobile Communication System
Masayuki Ishizaki, Kiyoshi Yamamoto, Tatsuya Abe, Masahiro Asano (Hitachi Kokusai Electric Inc.), Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SRW2020-6
In this report, we propose a high-speed reception gain control method for a real-time delay profile analysis using a syn... [more] SRW2020-6
RCS 2019-04-18
Hokkaido Noboribetsu Grand Hotel RCS simmulation for 90GHz-band Linear Cell Radar System for Railway and Runway Surveillance System -- Advanced Wireless System with Radio over fiber and Millimeter-wave Technology --
Nobuhiko Shibagaki (Hitachi Kokusai Electric) RCS2019-2
We are studying a foreign object debris detection radar for airport runway and railway track monitoring using the 90 GHz... [more] RCS2019-2
RCS 2019-04-18
Hokkaido Noboribetsu Grand Hotel [Invited Lecture] Field test of Railway Radiocommunication Systems between Train and Trackside with 100 GHz-band Millimeter-wave
Kazuki Nakamura, Nagateru Iwasawa, Nariya Iwaki, Keiichi Takeuchi, Kunihiro Kawasaki (RTRI), Nobuhiko Shibagaki, Katsuya Yanatori, Yosuke Sato, Masato Fujii, Kenichi Kashima (Hitachi Kokusai), Atsushi Kanno, Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (NICT/Waseda Univ.) RCS2019-10
Recently, the broadband communications between train and trackside are required. Therefore, the authors are developing a... [more] RCS2019-10
MWP 2018-11-26
Tokyo Kikai-Shinko-Kaikan Bldg. Gbit/s-class Railway Radio Communication System for High-Speed Train System using 100GHz band
Yosuke Sato, Katsuya Yanatori, Ryoki Haramoto, Kenichi Kashima, Nobuhiko Shibagaki (Hitachi Kokusai Electric Inc.) MWP2018-44
We are proposing a new communication system with a combination of radio over technology and W-band millimeter wave wirel... [more] MWP2018-44
Okinawa Okinawa Industry Support Center Field Experiment in the NLoS(Non-Line-of-Site) Due to the Forest using VHF Band Broadband Mobile Communication System
Kei Yanagisawa, Masayuki Ishizaki, Tatsuya Abe, Kiyoshi Yamamoto, Katsunori Ikeda, Yusuke Takahashi, Junya Dosaka, Masahiro Asano, Kazue Kato (Kokusai), Hiroshi Harada, Takeshi Matsumura, Keiichi Mizutani (KU) RCS2018-180
 [more] RCS2018-180
Overseas The University of Da nang, University of Science and Technology Current Rejection Characteristics of Coaxially Fed Antenna with Choke Structure Using Composite Right/Left-Handed Coaxial Line
Takatsugu Fukushima, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Naoya Fujimoto (Hitachi Kokusai Electric)
A coaxially fed antenna with a choke structure composed of a composite right/left-handed coaxial line (CRLH CL) has been... [more]
RCS 2018-04-24
Yamaguchi Hotel New Tanaka, Yuda Onsen 90GHz-band Linear Cell Radar System for Runway Surveillance System using Radio over Fiber Technology (I) -- Advanced Wireless System with Radio over fiber and Millimeter-wave Technology- --
Nobuhiko Shibagaki, Yosuke Sato, Kennichi Kashima (Hitachi Kokusai) RCS2018-19
 [more] RCS2018-19
AP 2018-04-20
Tokyo Hachijomachi-Shokokai Planar Sleeve Antenna Composed of Right/Left-Handed Transmission Line
Takatsugu Fukushima, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Naoya Fujimoto (Hitachi Kokusai Electric) AP2018-7
A choke structure is necessary to reduce the leakage current of a sleeve antenna, however, the size of the antenna becom... [more] AP2018-7
Kanagawa YRP Development of the small-sized radio equipment for multihop relay VHF band broadband mobile communication systems
Kei Yanagisawa, Kiyoshi Yamamoto, Tatsuya Abe, Masayuki Ishizaki, Shota Tobinaga, Nobuto Toguchi, Junya Dosaka, Masahiro Asano, Kazue Kato (Kokusai) RCS2017-404
The radio equipment for conventional VHF broadband mobile communication systems needed a plural radio equipment per 1 ba... [more] RCS2017-404
RCS 2017-10-20
Miyagi Tohoku Institute of Technology Development of the ground-to-train communication system using 90GHz band Millimeter-wave
Kazuki Nakamura, Kunihiro Kawasaki, Nagateru Iwasawa (RTRI), Nobuhiko Shibagaki, Yosuke Sato, Kenichi Kashima (Hitachi Kokusai) RCS2017-200
Recently, broadband communications such as the video transmission and Internet service are required between the ground a... [more] RCS2017-200
Miyagi Tohoku Univ. [Invited Talk] Evaluation for Radar Cross Section of Runway Lights Using 90GHz-band Linear Cell Radar System -- Advanced Wireless System with Radio over fiber and millimeter-wave Technology --
Nobuhiko Shibagaki, Yousuke Sato, Kenichi Kashima (Hitachi Kokusai)
MWP 2017-05-11
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] VHF-band Broadband Fixed Wireless systems to Resolve Digital Divides
Masahiro Asano, Jyunya Dosaka, Kenichi Kashima, Nobuhiko Shibagaki, Kazue Kato (Hitachi Kokusai) MWP2017-2
 [more] MWP2017-2
RCS 2017-04-24
Kagawa Kotohira Onsen Kotosankaku [Invited Lecture] W-Band Next Generation Railway Radiocommunication System for High-Speed Train and Their International Standardization Activities -- Advanced Wireless System with Radio over fiber and millimeter-wave Technology --
Nobuhiko Shibagaki, Yousuke Sato, Kyosuke Ishikawa, Kennichi Kashima (Hitachi Kokusai) RCS2017-10
 [more] RCS2017-10
OPE, MW, EMT, MWP, EST, IEE-EMT [detail] 2016-07-21
Hokkaido   [Invited Talk] 10GbE Data Connectivity over a Converged Radio-over-Fiber and Millimeter-wave Links
Abdelmoula Bekkali, Takashi Kobayashi, Kosuke Nishimura (KDDI Labs.), Nobuhiko Shibagaki (Hitachi Ltd.), Kenichi Kashima, Yosuke Sato (Hitachi Kokusai Electric) EMT2016-9 MW2016-40 OPE2016-21 EST2016-10 MWP2016-11
 [more] EMT2016-9 MW2016-40 OPE2016-21 EST2016-10 MWP2016-11
Hokkaido Otaru port marina Sleeve Antenna with Left-handed Choke Structure
Takatsugu Fukushima, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Naoya Fujimoto (Hitachi Kokusai Electric) AP2016-50
In this paper, the composite right/left-handed (CRLH) transmission line has been applied to a choke structure of the sle... [more] AP2016-50
AP 2015-02-20
Hyogo Chusho-kigyou center at Amagasaki-City [Invited Lecture] Field experiments of broadband communication using VHF band TV white space in Indonesia
Keigo Hasegawa, Tatsuya Abe, Kanta Sakamaoto, Yoshihiro Kawashima, Keat-Beng Toh, Kei Yanagisawa, Masayuki Takekawa, Junya Dosaka, Masahiro Asano (Hitachi Kokusai Electric) AP2014-200
This paper describes field experiments of broadband communication using VHF (Very High Frequency) band TV (Television) w... [more] AP2014-200
SSS 2014-03-13
Tokyo Kikai-Shinko-Kaikan Bldg HOW to catch Medical Commonplace must-be Quality
Hirotaka Shimizu (Hitachi Kokusai Electric) SSS2013-37
When we analyze medical accidents, we can find common ill factors from medical work-flow parts. Systematic management pr... [more] SSS2013-37
Tokyo NHK Science Tech. Research Lab. Prototype Development of IEEE 802.22 Radio Transmission Equipment
Keigo Hasegawa, Masayuki Takekawa, Kei Yanagisawa, Keat-Beng Toh, Seishi Sasaki, Masahiro Asano (Hitachi Kokusai Electric) MW2013-96
White space utilization in TV band has drawn much attention in many countries as one of the solutions to solve the frequ... [more] MW2013-96
WBS 2009-07-24
Shizuoka Shizuoka Univ. Basic Characteristics and Propagation Experiments in Aggregated Conditions for the High Band UWB Equipment
Takushi Mochizuki (NEC Electronics), Huan-Bang Li (NICT), Hikaru Hirotani (Hitachi Kokusai) WBS2009-20
From the experimental study of the High Band Experiment Task Group in the Council 2008 on Ultra Wideband Wireless Techno... [more] WBS2009-20
MW, EMCJ 2008-10-23
Yamagata Yamagata Univ. Analysis and experiment on efficiency enhancement of a GaN HEMT power amplifier using 2nd harmonic injection
Hiroshi Matsubara (Hokkaido Univ.), Fumitake Kawanabe (Hitachi Kokusai Electric Inc.), Toshio Nojima (Hokkaido Univ.) EMCJ2008-66 MW2008-110
 [more] EMCJ2008-66 MW2008-110
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