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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 13 of 13  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
EE 2017-01-27
11:35
Nagasaki Nagasaki University A study on balancing power demand with batteries for green base stations
Yuji Hosokawa, Hironobu Minowa, Kazuhiro Komiya, Kazuhiko Takeno (NTT DOCOMO) EE2016-81
We are studying on balancing power demand with batteries for green base stations. This paper presents a result in the de... [more] EE2016-81
pp.175-176
EE 2016-02-26
15:00
Tokyo Kikai-Shinko-Kaikan Bldg. Optimal Equipmet Design and Power Generation Characteristics for Disaster Resilient Green Base Stations
Kazuhiro Komiya, Masaki Nakamura, Yurie Mura, Hironobu Minowa, Kazuhiko Takeno (NTT DOCOMO) EE2015-33
NTT DOCOMO has been studying “green base stations’’ as a means of strengthening environmental measures and disaster resi... [more] EE2015-33
pp.19-23
EE, IEE-HCA 2015-05-28
11:30
Tokyo The Kikai Shinko Kaikan building Operation Verification of DC power-supply system with Fuel Cell for Green BTS
Takashi Furutani, Kazuhiro Komiya, Kazuhiko Takeno (NTT DOCOMO) EE2015-5
 [more] EE2015-5
pp.25-29
ACT
(2nd)
2011-12-22
15:05
Okinawa   Accuracy Improvement of Base Station Antenna Gain Measurement Using Short Reference Antenna
Ryo Yamaguchi, Kazuhiro Komiya (NTT DOCOMO)
 [more]
ACT
(2nd)
2011-09-02
15:55
Shimane The Shimane Institute for Industrial Technology Gain Measurement Method Considering Standing Wave by Using Synthetic Aperture Antenna
Kazuhiro Komiya, Ryo Yamaguchi (NTT DOCOMO)
 [more]
AP, SAT
(Joint)
2010-07-21
15:50
Hokkaido Kitami Inst. Tech. Relationship between Beamwidth of Source Antenna and Gain Deviation on Gain Measurement Method Using Numerical Compact Range Concept
Kazuhiro Komiya, Ryo Yamaguchi, Keizo Cho (NTT DOCOMO) AP2010-48
 [more] AP2010-48
pp.59-62
ACT
(2nd)
2010-07-09
14:20
Tokyo NICT Kohji-machi Office Influence of Probe Antenna Pattern on Far-Field Measurement by Synthetic Aperture Antenna
Ryo Yamaguchi, Kazuhiro Komiya, Keizo Cho (NTT DOCOMO)
 [more]
AP 2009-10-08
14:35
Shizuoka Shizuoka University Design of Base Station Antenna Using Hybrid Tilting
Makoto Sumi, Kazuhiro Komiya, Ryo Yamaguchi, Keizo Cho (NTT DOCOMO) AP2009-114
In mobile communications, narrow horizontal beam width comparing to the sector angle is required for base station antenn... [more] AP2009-114
pp.67-72
AP 2009-05-21
10:55
Kumamoto Kumamoto Univ. A Gain Measurement Method for Long Antenna by Using Synthetic Aperture Antenna
Kazuhiro Komiya, Ryo Yamaguchi, Keizo Cho (NTT DOCOMO) AP2009-14
It is difficult to obtain far-field radiation patterns of electrically large scale antenna when the distance between Tx ... [more] AP2009-14
pp.19-23
ACT
(2nd)
2008-12-01
16:20
Kyoto Doshisha Univ. (Imadegawa campus) Far-Field Measurement Method in the Short Range Anechoic Chamber
Ryo Yamaguchi, Yasuko Kimura, Kazuhiro Komiya, Keizo Cho (NTT DOCOMO)
 [more]
AP 2008-10-17
13:25
Miyagi Tohoku Gakuin University Plane Wave Characteristics of Far-field Measurement Method by Using Synthetic Aperture Antenna
Ryo Yamaguchi, Yasuko Kimura, Kazuhiro Komiya, Keizo Cho (NTT DOCOMO) AP2008-103
 [more] AP2008-103
pp.49-54
AP 2007-01-26
09:25
Fukui Fukui Univ. Evaluation of Mobile Terminal Antenna Characteristics in Multipath Environments Using Ray-trace Method
Kazuhiro Komiya, Yoshio Ebine (DoCoMo Technology), Tetsuro Imai (NTT DoCoMo) AP2006-123
We evaluate the characteristics of a mobile antenna in multipath environments using ray-trace method. The simulation res... [more] AP2006-123
pp.77-82
AP 2006-10-19
10:45
Kyoto Kyoto Univ. (Katsura Campus) Evaluation of Base Station Antenna Characteristics in Multipath Environments Using Ray-trace Method
Kazuhiro Komiya, Yoshio Ebine (DoCoMo Technology), Tetsuro Imai (NTT DoCoMo) AP2006-79
We evaluate the characteristics of a base station antenna in multipath environments using ray-trace method. The simulati... [more] AP2006-79
pp.17-22
 Results 1 - 13 of 13  /   
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