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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2017-10-20 14:00 |
Aomori | Hchinohe-Shoukou-Kaikan | Propagation Analysis by Number of Beams for Horizontal Antenna Pattern
-- Base Station Antenna Characteristics by Single Beam or Multi-Beam -- Mayumi Yoshino, Doppo Sugimura, Makoto Mizumura (Dengyo), Yoshio Ebine (NAZCA)  AP2017-104 |
In this paper, we consider number of horizontal antenna pattern beams and perform propagation analysis in urban or subur... [more] | AP2017-104 pp.51-56 |
| AP | 2017-02-17 10:20 |
Tochigi | Tochigiken-sougou-bunnka Center | [Invited Lecture]
Ray Tracing Propagation Analysis by Considering with Multi-Beam Antenna Pattern Mayumi Yoshino, Doppo Sugimura, Makoto Mizumura (Dengyo), Yoshio Ebine (NAZCA) AP2016-169 |
In this paper，we perform ray tracing propagation analysis considering with multi-beam antenna to investigate the effect ... [more] | AP2016-169 pp.71-76 |
| AP, SAT, SANE (Joint) |
2016-07-22 14:00 |
Hokkaido | Otaru port marina | A Consideration on Null-filling for Array Antenna Yoshio Ebine, Masahiko Nasuno (NAZCA) AP2016-61 |
The null-filling antenna can be achieved by fed tapered to sequentially with a constant coefficient (maximum amplitude /... [more] | AP2016-61 pp.133-136 |
| AP | 2015-07-31 10:55 |
Hokkaido | Wakkanai Sougou Bunka Center | Evaluation of Wireless Area by Ray Tracing Method at 3.5GHz Band
-- On Beam Tilting Effect -- Mayumi Yoshino, Yoshio Ebine, Asuka Nishizaka (Dengyo) AP2015-53 |
In 4th generation mobile communication systems, wireless area by a base station antenna takes the form of small wireless... [more] | AP2015-53 pp.77-82 |
| AP | 2015-05-21 13:00 |
Nara | Naraken Shakai Fukushi Sougou Center (Kashihara City) | Evaluation of Wireless Area by Ray Tracing Method at 3.5GHz Band
-- Effect of Antenna Pattern by Base Station Antenna Height -- Mayumi Yoshino, Yoshio Ebine, Asuka Nishizaka (Dengyo) AP2015-19 |
In 4th generation mobile communication systems, wireless area by a base station antenna takes the form of small wireless... [more] | AP2015-19 pp.1-6 |
| AP | 2015-02-19 14:10 |
Hyogo | Chusho-kigyou center at Amagasaki-City | [Invited Lecture]
A dual polarization antenna using a part of spherical reflector with a rim Yasuko Kimura (NTT docomo), Yoshio Ebine (NDK) AP2014-194 |
It is important the introduction of small cell base stations for Advanced C-RAN architecture which increases the radio c... [more] | AP2014-194 pp.43-48 |
| AP, MW (Joint) |
2014-09-19 15:00 |
Tokyo | Tokyo Institute of Technology, Ookayama Campus | Design Method of Dipole Antenna with Metal Reflector for Utilizing Orthogonal Polarization Yoshiki Sugimoto, Toshikazu Hori, Mitoshi Fujimoto (Univ. of Fukui), Yoshio Ebine (Nihon Dengyo Kosaku) AP2014-104 |
An unidirectional pattern can be realized by an antenna with a metal reflector in a simple structure. Therefore, it is w... [more] | AP2014-104 pp.61-64 |
| AP | 2014-01-22 15:50 |
Kagoshima | Hozan Hall (Kagoshima Prefectural Culture Center) | A study of broadband feeding circuit using array antennas
-- Part 2 -- Asuka Nishizaka, Yoshio Ebine (DENGYO) AP2013-144 |
In order to realize broadband feeding circuits， it is possible to achieve relative bandwidth over 100% (VSWR 1.2) using ... [more] | AP2013-144 pp.59-64 |
| AP | 2014-01-23 15:55 |
Kagoshima | Hozan Hall (Kagoshima Prefectural Culture Center) | [Tutorial Lecture]
History of Base Station Antenna Development for Mobile Communication Systems
-- For the First Generation and the Second Generation System -- Yoshio Ebine (DENGYO) AP2013-158 |
The analog mobile communication system (the first generation) was adopted for the circular radio zone configuration. The... [more] | AP2013-158 pp.141-146 |
| AP, PEM (Joint) |
2013-10-04 10:30 |
Ishikawa | Kanazawa Univ. Satellite-Plaza | Study of Broadband Feeding Circuit Using Array Antennas Asuka Nishizaka, Yoshio Ebine (Nihon Dengyo Kosaku) AP2013-94 |
In the conventional method, it is difficult to realize broadband feeding circuits which is over 100% (VSWR 1.2) of fract... [more] | AP2013-94 pp.41-46 |
| AP, SAT (Joint) |
2013-07-23 16:20 |
Hokkaido | Sun Refre Hakodate | Antenna Array Pattern Synthesis for Ring Cell by Using Genetic Algorithm Yuko Rikuta, Yoshio Ebine (DENGYO) AP2013-52 |
In recent years, many different types of radiation patterns in vertical plane of the base station antenna are demanded. ... [more] | AP2013-52 pp.33-36 |
| AP | 2007-01-25 14:15 |
Fukui | Fukui Univ. | A Multi-band Printed Monopole Antenna Yasuko Kimura, Yoshio Ebine (DoCoMo Technology) AP2006-117 |
There is a miniaturization module that integrates a data communication adapter with wireless system. Current mobile comm... [more] | AP2006-117 pp.43-48 |
| 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 |
| AP, SAT (Joint) |
2006-05-18 11:15 |
Kagoshima | Kagoshima Univ. | Relations between Vertical Radiation Pattern and Down-link Capacity for Base Station Antenna of IMT-2000 Yasuko Kimura, Yoshio Ebine (DoCoMo Technology, Inc.), Tetsuro Imai (NTT DoCoMo, Inc.), Hiroyuki Arai (Yokohama National Univ.) AP2006-14 |
A shaped beam pattern for the base station array antenna using the IMT-2000 system, for example cosecant beam pattern, i... [more] | AP2006-14 pp.29-34 |
| AP, RCS (Joint) |
2005-10-20 14:50 |
Akita | Akita Prefectural Univ. | Controlled H.P.B.W. of a Polarization Diversity Base Station Antenna using Three-sector zone for Cellular Mobile Radios Yasuko Kimura, Yoshio Ebine (DoCoMo Technology) |
It is known that in order to increase system capacity for IMT-2000, the beam width in the horizontal plane at base stati... [more] | AP2005-94 pp.63-67 |
| AP, SAT (Joint) |
2005-07-22 13:25 |
Hokkaido | Hotel Taisetsu | Low Side-lobe Narrow Beam Antennas with Closely Arranged Conductive Poles for 6 Sector Site Yasuko Kimura, Keizo Cho (NTT DoCoMo), Yoshio Ebine (DoCoMo Tech.) |
It is known that a narrow beam antenna, which is smaller than the base station’s sector angle, is effective for IMT-2000... [more] | AP2005-63 pp.149-154 |
| RCS, AP | 2004-10-28 14:30 |
Niigata | Niigata University | A Corner Reflector Antenna with a Wide-Shaped Parasitic Element Hironori Kakefuda (Nihon Dengyo Kosaku), Yoshio Ebine (NTT DoCoMo), Hiroyuki Arai (Yokohama National Univ.) |
[more] | AP2004-140 RCS2004-161 pp.43-48 |
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