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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 19 of 19  /   
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
 Results 1 - 19 of 19  /   
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