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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 6 of 6  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW, AP
(Joint)
2015-09-17
13:55
Tochigi Oyama National College of Tech. [Invited Lecture] RF front-end configuration of Massive-MIMO base station
Yasunori Suzuki, Kei Satoh, Makoto Sumi, Atsushi Fukuda, Shoichi Narahashi (NTT DOCOMO) AP2015-83 MW2015-90
This paper presents an overview of requirements and technical issues regarding a RF front-end module for Massive-MIMO ba... [more] AP2015-83 MW2015-90
pp.21-25(AP), pp.19-23(MW)
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
RCS, SR, SRW
(Joint)
2014-03-04
08:50
Tokyo Waseda Univ. Basic Performances of Super High Bit Rate Massive MIMO Transmission Using Higher Frequency Bands
Satoshi Suyama, Jiyun Shen, Tatsunori Obara, Makoto Sumi (NTT DOCOMO), Mitsumasa Nakajima (NTT), Yukihiko Okumura (NTT DOCOMO) RCS2013-348
Towards realization of a future mobile network with super high bit rate and capacity, this report evaluates a feasibilit... [more] RCS2013-348
pp.253-258
AP, SAT
(Joint)
2013-07-23
13:55
Hokkaido Sun Refre Hakodate Frequency characteristics of a small 4-band printed antenna comprising symmetrically arranged trapezoid elements and strip elements
Makoto Sumi (NTT DOCOMO), Keizo Cho (CIT) AP2013-47
This paper proposes a new small multiband printed antenna for wireless telecommunications modules which can realize M2M(... [more] AP2013-47
pp.7-12
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, SAT
(Joint)
2009-07-08
13:50
Hokkaido Otaru city, Hokkaido Resonant frequency and bandwidth characteristics of an electromagnetically coupled printed monopole antenna loaded with trapezoid elements
Makoto Sumi, Keizo Cho (NTT DOCOMO) AP2009-50
This paper proposes a new electromagnetically coupled printed monopole antenna loaded with trapezoid elements which can ... [more] AP2009-50
pp.35-40
 Results 1 - 6 of 6  /   
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