Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP |
2008-12-11 14:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Miniaturization of a circular radiating element using sandwiched dielectric loading for Ring-type UWB antennas. Takashi Arakawa, Ken-ichi Asanuma, Katsuhiro Fujimoto, Takayuki Wakabayashi, Tadahiko Maeda (Ritsumeikan Univ.) AP2008-144 |
This report describes the radiation characteristics of ring-type UWB antennas placed in the vicinity of a simulated huma... [more] |
AP2008-144 pp.25-30 |
AP |
2008-09-11 13:50 |
Kanagawa |
National Defense Academy |
Scale-model Experiments on Impedance and Radiation Efficiency Measurements Using Scale-model Human Equivalent Phantoms Placed in the Vicinity of the Antenna Under Test Katsuhiro Fujimoto, Ken-ichi Asanuma, Takayuki Wakabayashi, Tadahiko Maeda (Ritsumeikan Univ.) AP2008-83 |
In assessing a wideband small antenna, both input impedance and radiation efficiency are important evaluation indexes. H... [more] |
AP2008-83 pp.49-54 |
AP |
2008-03-13 14:15 |
Aichi |
Nanzan Univ. |
The Effects of Antenna Arrangement and Human Hand on the MIMO Channels for Short Range Wireless Communication Takahiro Mizuno, Satoshi Kojima, Kouta Nakamura, Keiichi Yoshitomi, Ken-ichi Asanuma, Tadahiko Maeda (Rits Univ.) AP2007-180 |
Recently, MIMO (Multiple-Input Multiple-Output) has attracted much attention as a technology achieving a higher channel ... [more] |
AP2007-180 pp.43-48 |
AP |
2008-03-13 14:50 |
Aichi |
Nanzan Univ. |
MIMO Channel Measurements including Human body and Blocking Objects at 2.4GHz/5.2GHz Satoshi Kojima, Takahiro Mizuno, Kouta Nakamura, Keiichi Yoshitomi, Ken-ichi Asanuma, Tadahiko Maeda (Rits Univ.) AP2007-181 |
In recent years, MIMO (Multiple-Input Multiple-Output) systems achieving high data rate transmission have been receiving... [more] |
AP2007-181 pp.49-54 |
AP, SAT (Joint) |
2007-07-19 09:40 |
Hokkaido |
Daiichi-Takimotokan(Noboribetsu) |
Study on the Radiation Characteristics of the Asymmetric Shorted Bow-tie Antenna Ken-ichi Asanuma, Takeshi Okumoto, Yuichi Yokota, Tadahiko Maeda (Ritsumeikan Univ.) AP2007-44 |
UWB(Ultra Wideband) is one of the promissing technologies for ultra high speed
wireless communications especially for t... [more] |
AP2007-44 pp.13-18 |
AP |
2007-05-18 10:50 |
Kochi |
Kochi Univ. of Tech. |
Evaluation of the Near-Field UWB Transmission Characteristics Using the MR-FDTD Method Applied to the Parallel Computing Ken-ichi Asanuma, Katsuhiro Fujimoto, Yuichi Yokota, Tadahiko Maeda (Ritsumeikan Univ.) AP2007-22 |
To assess the actual performance of UWB transmission systems, various relative angles between the transmitting antenna a... [more] |
AP2007-22 pp.51-56 |
AP |
2007-05-18 11:15 |
Kochi |
Kochi Univ. of Tech. |
A Study on the Band-rejection Characteristics of the Frequency Notched UWB Antenna Placed in the Vicinity of a Human Hand Keiichi Yoshitomi, Ken-ichi Asanuma, Yuichi Yokota, Tadahiko Maeda (Ritsumeikan Univ.) AP2007-23 |
Ultra wide-band (UWB) technology is one of the most promising solutions for the future wireless communication
systems d... [more] |
AP2007-23 pp.57-62 |
AP |
2007-01-25 13:00 |
Fukui |
Fukui Univ. |
A Study on an Impedance Matching Method of Dipole Earphone Antennas with Varicap Diodes Attached to the Feedline for the Digital Terrestrial Broadcasting Reception Masato Tanaka, Ken-ichi Asanuma, Tadahiko Maeda (Ritsumeikan Univ.) AP2006-114 |
New digital broadcasting services for portable radio device started in Japan. To realize the high quality TV reception i... [more] |
AP2006-114 pp.25-30 |
AP |
2007-01-25 14:50 |
Fukui |
Fukui Univ. |
A Study on the Application Conditions of FDTD Subgridding Algorithm for the Analysis of Yagi-Uda Antennas Placed in the Vicinity of Building Structures Yuichi Maeda, Shio Yamamoto, Daisuke Ushirogouchi, Ken-ichi Asanuma, Tadahiko Maeda (Ritsumeikan Univ.) AP2006-118 |
In order to increase the simulation accuracies with FDTD method, it is often required to use higher grid resolution with... [more] |
AP2006-118 pp.49-54 |
AP |
2006-12-14 13:50 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Eigenvalue Distribution of the Multi-Element UWB Antenna Systems Including the Effects of Human Body Ken-ichi Asanuma, Daisuke Ushirogouchi, Shio Yamamoto, Tadahiko Maeda (Ritsumeikan Univ.) AP2006-107 |
In order to evaluate the actual performance of the short-range UWB high-speed transmission systems under Line-of-Sight c... [more] |
AP2006-107 pp.63-68 |
AP, SAT (Joint) |
2006-05-19 09:00 |
Kagoshima |
Kagoshima Univ. |
A Study on the Design Parameters for Evaluating the UWB Transmission Characteristics Including the Effects of Human Body Ken-ichi Asanuma, Tadahiko Maeda (Ritsumeikan Univ.) AP2006-17 |
[more] |
AP2006-17 pp.47-52 |
AP, SAT (Joint) |
2006-05-19 09:25 |
Kagoshima |
Kagoshima Univ. |
A Study on the Modeling Accuracy of a Human Hands in terms of the Simulation and Experiment Results of UWB transmissions Daisuke Ushirogouchi, Ken-ichi Asanuma, Shio Yamamoto, Tadahiko Maeda (Ritsumei Univ) AP2006-18 |
ince the size of mobile terminal is getting reduced recently, the human hand holding the terminal tends to block the rad... [more] |
AP2006-18 pp.53-58 |
EMCJ |
2006-04-18 14:05 |
Tokyo |
Aoyama Gakuin Univ. (Aoyama Campus) |
A Study on the Radiation Characteristics of the Electric Field Probe with Trim-weight Holes Hiroyuki Matsuda, Ken-ichi Asanuma, Tadahiko Maeda (Ritsumei Univ.) EMCJ2006-3 |
While a coaxial cable is popular and convenient for the feed lines of the
antennas for the radiation characteristics me... [more] |
EMCJ2006-3 pp.13-18 |
AP |
2005-12-15 13:50 |
Tokyo |
Tokyo Inst. of Tech. |
A Study on the receiving characteristics of UWB antenna systems including the effects of human hands Ken-ichi Asanuma, Tadahiko Maeda (Ritsumeikan Univ.) |
In evaluating the actual performance of the UWB-IR systems under Line-of-Sight condition, there are two major issues to ... [more] |
AP2005-124 pp.47-52 |
AP, SAT (Joint) |
2005-05-20 13:50 |
Tottori |
Tottori Univ. of Environmental Studies |
A study on the accuracy of the DOA estimation for the simulated W-LAN access points including the effects of the leakage current on the surface of the conducting body and the manufacturing errors of radiating elements Masaki Uno, Ken-ichi Asanuma, Masao Asakawa, Tadahiko Maeda (Ritsumeikan Univ.) |
[more] |
AP2005-24 pp.85-90 |
AP |
2005-04-21 13:00 |
Shiga |
Ritsumeikan Univ. |
The FDTD Analysis on the Mechanical Structure of The Optical Electric Field Probe Hiroyuki Matsuda, Ken-ichi Asanuma, Satoshi Banba, Tadahiko Maeda (Ritsumeikan Univ.) |
While a coaxial cable is popular and convenient for the feed lines of the
antennas for the radiation characteristics me... [more] |
AP2005-3 pp.13-18 |
AP |
2005-04-21 13:25 |
Shiga |
Ritsumeikan Univ. |
An Experimental Study on the Accuracy of the Location Measurement Method for Wireless ID-tag Systems using Three Built-in Antennas and Antenna Direction Sensors Takashi Matsumoto, Hiroshi Yoshida, Ken-ichi Asanuma, Tadahiko Maeda (Ritsumeikan Univ.) |
[more] |
AP2005-4 pp.19-24 |
RCS, AP, WBS, MW, MoNA |
2005-03-04 14:20 |
Kanagawa |
Yokosuka Research Park |
A Study on Method of Moment based on Parallel Processing Environment for Optimum Design Applications Masao Asakawa, Yoshie Ogura, Ken-ichi Asanuma, Tadahiko Maeda (Ritsumeikan Univ.) |
[more] |
WBS2004-156 AP2004-337 RCS2004-424 MoMuC2004-207 MW2004-334 pp.203-208 |
AP |
2005-02-17 11:45 |
Tokyo |
NiCT |
Radiation Characteristics of Earphone Type Wire Antenna for Digital Terrestrial Broadcasting Reception Including the Effects of the Human Body Masato Tanaka (Ritsumeiken Univ.), Satoshi Banba, Ken-ichi Asanuma, Tadahiko Maeda (Ritsumei Univ.) |
[more] |
AP2004-228 pp.31-36 |