Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP, WPT (Joint) |
2014-10-17 13:55 |
Hokkaido |
Hokkaido University, Clark Memorial Student Center |
Experimental Investigation of Glass Loss for Indoor-to-outdoor Propagation Hiromi Matsuno, Toru Kitayabu, Yoshiaki Amano, Masayuki Nakano, Akira Yamaguchi (KDDI R&D Labs) AP2014-125 |
In this paper, the experimental evaluation of indoor-to-outdoor propagation in 3.5GHz, 2.115GHz, and 870MHz is employed.... [more] |
AP2014-125 pp.93-97 |
AP, WPT (Joint) |
2014-10-17 14:20 |
Hokkaido |
Hokkaido University, Clark Memorial Student Center |
Field Experiments on MIMO Antennas for Small Cell Base Stations in 3.5GHz Band Yoshiaki Amano, Toru Kitayabu, Hiromi Matsuno, Masayuki Nakano, Akira Yamaguchi (KDDI R&D) AP2014-126 |
Small cells have attracted a lot of attention to improve data throughput and frequency utilization efficiency for the 4t... [more] |
AP2014-126 pp.99-103 |
RCC, ASN, NS, RCS, SR (Joint) |
2014-07-30 15:10 |
Kyoto |
Kyoto Terrsa |
Experimental Measurements of IEEE 802.11n in 5 GHz Band Hiraku Okada (Nagoya Univ.), Eisaburo Itakura (Sony), Kenichi Mase (Niigata Univ.) ASN2014-44 |
This report discusses an application of IEEE 802.11n to a link between mesh nodes to improve throughput performance. IEE... [more] |
ASN2014-44 pp.25-30 |
AP, MW (Joint) |
2012-09-27 13:00 |
Saitama |
KDDI R&D LABS |
The overseas propagation characteristic of the 5-GHz space diversity which has arranged the antenna to negative correlation Kanemi Sasaki, Hiroyuki Murakami, Shinya Kobayashi, Kenya Tomaru (Hitachi Kokusai Electric) AP2012-85 |
In this report, as a method being suitable for long-range oversea propagation, we propose a configuration method of spac... [more] |
AP2012-85 pp.19-24 |
SR, RCS, SRW (Joint) |
2012-03-07 15:15 |
Kanagawa |
YRP |
USRP Implementation of Mobile Terminals for Multi-user MIMO Experiments on 5GHz Band Ryo Shinohara, Hidekazu Murata, Susumu Yoshida, Koji Yamamoto (Kyoto Univ.), Daisuke Umehara (Kyoto Tech.), Satoshi Denno (Okayama Univ.), Masahiro Morikura (Kyoto Univ.) RCS2011-328 |
In a multi-user MIMO system which can increase the spectral efficiency in wireless communications, MIMO precoding can re... [more] |
RCS2011-328 pp.73-76 |
NS, RCS (Joint) |
2011-12-16 13:40 |
Yamaguchi |
Yamaguchi University |
Study on Area Expansion for Cellular System using Frequencies above 5GHz
-- Evaluation of Number of Repeaters and System Cost depending on Frequencies -- Ngochao Tran, Yasuhiro Oda, Tamami Maruyama, Jiyun Shen, Hidetoshi Kayama (NTT Docomo INC.) RCS2011-266 |
To realize next-generation ultra high-speed mobile communication system, we study on using high carrier frequencies abov... [more] |
RCS2011-266 pp.195-200 |
AP |
2011-08-02 13:25 |
Akita |
|
Simultaneous read of multiple 2.45GHz band RFID tags attached books Ryoto Uchita, Shigeki Takeda, Kenichi Kagoshima (Ibaraki Univ.) AP2011-50 |
Recently, the book management system using RFID begins to be operated. However, it was confirmed that there was a place ... [more] |
AP2011-50 pp.7-11 |
RECONF |
2011-05-12 15:25 |
Hokkaido |
Hokkaido Univ. (Faculty of Eng., B3 Bldg.) |
Development of Wireless Video Transmission Equipment in 5GHz MIMO-OFDM Using FPGA Jun Takizawa, Takaya Kaji, Shingo Yoshizawa (Hokkaido Univ.), Takashi Gunji, Morio Tawarayama (Mitubishi Denki Tokki System), Yoshikazu Miyanaga (Hokkaido Univ.) RECONF2011-9 |
MIMO-OFDM enables high-speed wireless communication, and is employed in IEEE802.11n and IEEE802.11ac. We developed a 2x2... [more] |
RECONF2011-9 pp.49-54 |
AP, MW (Joint) |
2011-03-03 13:25 |
Ibaraki |
Ibaraki Univ. |
Reading Characteristics of 2.45GHz Band Passive RFID Tags Attached to a Large Metallic Plate form a Close Distance Wataru Sudo, Shigeki Obote, Kenichi Kagoshima (Ibaraki Univ.) AP2010-180 |
In this paper, we have compared the characteristics of a circularly polarized antenna and linearly polarized antenna whe... [more] |
AP2010-180 pp.37-42 |
SR |
2010-07-30 13:20 |
Kyoto |
ATR (Kyoto) |
[Technology Exhibit]
Si CMOS RF Frontend for Dependable Wireless System Suguru Kameda, Ta Tuan Thanh, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) SR2010-38 |
We are developing Dependable Wireless System (DWS) for realizing high-mobility and ultra high-data-rate mobile terminal ... [more] |
SR2010-38 pp.125-132 |
SIS |
2009-12-17 13:20 |
Kyoto |
|
Characteristics of a dead spot for 2.45GHz band passive RFID tags close to metallic plates Jun Tei, Peng Wang, Shigeki Obote, Kenichi Kagoshima (Ibaraki Univ.) SIS2009-35 |
We have observed experimentally that dead spots occur when a 2.45GHz band RFID tag is placed in a vicinity of a metallic... [more] |
SIS2009-35 pp.25-30 |
AP |
2009-10-08 09:25 |
Shizuoka |
Shizuoka University |
Cross Polarization Characteristics of 5GHz Band Balun Integrated 3-Stacked Meander Line Antenna Using Meander-Line Shape Balun Satoshi Yoshida, Hiroshi Oguma, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) AP2009-104 |
We optimized and implemented a 5GHz band balun-integrated 3-stacked meander line antenna. As a result, relative bandwidt... [more] |
AP2009-104 pp.7-12 |
OPE, EMT, MW |
2009-07-30 13:25 |
Hokkaido |
Asahikawa Civic Culture Hall |
High efficiency dual-resonant-cavity InGaAs pin-PD for radio-over-fiber application Eitaro Ishimura, Masaharu Nakaji, Chikara Watatani, Toru Ota, Shigetaka Itakura, Kiyohide Sakai, Toshitaka Aoyagi, Takahide Ishikawa (Mitsubishi Electric Corp.) MW2009-35 OPE2009-35 |
For radio-over-fiber applications, we have developed a high-efficient InGaAs pin PD with a dual resonant cavity, which r... [more] |
MW2009-35 OPE2009-35 pp.31-34 |
AP |
2009-05-22 13:55 |
Kumamoto |
Kumamoto Univ. |
Cross Polarization Characteristics of 5GHz Band Balun Integrated Dipole Antenna Using Meander-Line Shape Satoshi Yoshida, Hiroshi Oguma, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) AP2009-32 |
We designed a 5GHz band balun-integrated dipole antenna using linear-shaped balun structure. As a result, cross polariza... [more] |
AP2009-32 pp.123-128 |
MW |
2008-11-21 15:00 |
Nagasaki |
Nagasaki-Univ. |
Broadband Suspended-Coupled Balun for 5GHz Band Using Multi-Layer Liquid Crystal Polymer Substrate Satoshi Yoshida, Futoshi Takeuchi, Suguru Kameda, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) MW2008-143 |
We redesigned a new ground pattern of suspended-coupled balun using multilayer interconnection structure, and incresed b... [more] |
MW2008-143 pp.143-148 |
MoNA, IPSJ-MBL |
2008-05-23 09:00 |
Okinawa |
Okinawa-seinen-kaikan |
[Invited Talk]
Outline of Mobile WiMAX Toshio Kawazawa (UQC) MoMuC2008-16 |
UQ Communications was received a nationwide license for mobile WiMAX as high-speed Internet services by Japan's Ministry... [more] |
MoMuC2008-16 pp.91-96 |
SIS |
2007-12-10 09:55 |
Hyogo |
|
Study on characteristics of small RFID tags and its performance improvement Peng Wang, Hideaki Yamauchi, Daijiro Araki, Sho Yamada, Shigeki Obote, Kenichi Kagoshima (Ibaraki Univ.), Kenji Araki (Hitachi Research Lab.) SIS2007-46 |
A small RFID tag consists of a antenna and IC-chip, and its size is several mm. Because antenna gain is very small and i... [more] |
SIS2007-46 pp.7-12 |
MW |
2007-05-22 11:15 |
Hyogo |
University of Hyogo |
Suspended Coupled Balun for Microwave Band Using Multi-Layer Liquid Crystal Polymer Substrate Futoshi Takeuchi, Suguru Kameda, Hiroyuki Nakase, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) MW2007-24 |
This paper presents a suitable structure of a balun using a multi-layer substrate. In a conventional planar balun, it is... [more] |
MW2007-24 pp.67-72 |
AP |
2007-05-18 15:25 |
Kochi |
Kochi Univ. of Tech. |
Balun-Integrated 3-Stacked Meander Line Antenna Satoshi Yoshida, Atsushi Tosaki, Hiroshi Oguma, Suguru Kameda, Hiroyuki Nakase, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) AP2007-29 |
A balun is indispensable to connect balanced antenna with single-end devices. If we design only small balanced antenna, ... [more] |
AP2007-29 pp.91-96 |
SAT |
2006-10-19 17:30 |
Overseas |
KAL Hotel (Jeju-Do, Korea) |
Analysis of the Propagation Field Data on High Elevation Angle for 2GHz and 2.5GHz Bands Mobile Satellite Communications Isao Nakazawa (NTWL), Kazuhiro Kimura, Hitoshi Ishida, Shin'ichi Hama (NICT) |
The receiving revel of mobile satellite communication using the communication and broadcasting engineering test satellit... [more] |
|