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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 33  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
AP 2022-10-20
15:35
Gifu GIFU CITY CULTURE CENTER
(Primary: On-site, Secondary: Online)
Radiation Pattern Analysis and Measurement on Vehicle Shape for Automotive Antenna
Hirokazu Sawada, Kyoichi Iigusa, Takashi Matsuda, Takeshi Matsumura (NICT)
 [more]
AP, SANE, SAT
(Joint)
2021-07-30
11:40
Online Online Directivity Verification of Mounted Antennas for Radio Emulator
Hirokazu Sawada, Takashi Matsuda, Kyoichi Iigusa, Fumihide Kojima, Takeshi Matsumura (NICT) AP2021-41
 [more] AP2021-41
pp.97-102
MW, AP
(Joint)
2013-09-13
13:30
Tokyo NHK Science Tech. Research Lab. A Basic Study of Bandwidth Enhancement of a Bent Monopole Antenna by Conductor Plate Proximity Installation
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2013-84
We propose to enhance the bandwidth of a bent monopole antenna by installing a conductor plate proximity in order to pro... [more] AP2013-84
pp.21-26
AP 2013-08-30
15:25
Kanagawa Yokosuka A Basic Study to Control Radio Wave Transmission with a Small Number of Varactor
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2013-78
We examine the method to realize sufficient transmission change of a radio wave shutter with a small number of varactor ... [more] AP2013-78
pp.89-94
AP, ITE-BCT 2012-02-10
09:05
Hiroshima NHK Hiroshima Relation between Elements of Impedance Matrix of Dipoles
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2011-191
There is a component that is zero at the port in the current distribution of a dipole antenna. The electric influence of... [more] AP2011-191
pp.63-68
AP, SAT
(Joint)
2011-07-13
15:00
Nagano Fac. Eng., Shinshu Univ. A Basic Study on Directive Gain and Radiation Efficiency of Reactively Loaded Three-Element Yagi-Uda Antenna
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2011-28
 [more] AP2011-28
pp.7-12
AP, ITE-BCT 2011-02-10
14:35
Tokyo NHK Science Tech. Research Lab. A study on Efficiency of Short Distance Wireless Electric Power Transmission with Considering Radiation Loss
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2010-173
 [more] AP2010-173
pp.75-80
AP 2010-12-17
11:50
Tokyo Kikai-Shinko-Kaikan Bldg. A Study on Efficiency of a Reactance-Laded Small Antenna
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2010-125
We propose a reactance-loaded small antenna and a calculation method of the radiation efficiency dependency on loading r... [more] AP2010-125
pp.43-48
MW, EMCJ 2010-10-21
13:30
Akita Akita Univ. Basic Study on Trough-Hole Switch for Post-Wall Waveguide in Millimeter Wave Band
Kyoichi Iigusa, Keren Li, Katsuyoshi Sato, Hiroshi Harada (NICT) EMCJ2010-53 MW2010-88
As a switch for a millimeter wave post-wall waveguide, slits are made at joining parts of a through hole and conductor p... [more] EMCJ2010-53 MW2010-88
pp.7-12
RCS 2010-06-17
15:15
Kyoto Kyoto Univ. An Inter-vehicle Communications Systems by Adaptive Modulation OFDM Based Control and User Data Transmission Scheme in 720 MHz Band
Hiroshi Harada, Kyoichi Iigusa, Ryuhei Funada, Katsuyoshi Sato, Keren Li (NICT) RCS2010-30
 [more] RCS2010-30
pp.73-78
RCS, AN, MoNA, SR
(Joint)
2010-03-03
13:00
Kanagawa YRP Propagation model for inter vehicle communication in 720MHz band
Katsuyoshi Sato, Kyoichi Iigusa, Hiroshi Harada (NICT) RCS2009-270
Interest in ITS (Intelligent Transport Systems) technology has been growing in recent years, because it may be used to a... [more] RCS2009-270
pp.77-82
AP 2010-01-21
13:20
Yamaguchi Yamaguchi University A Study on Enhancement of Frequency Band of 3 Elements Yagi-Uda Antenna with a Narrow Spacing
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2009-162
The increase of the frequency band of 3 elements Yagi-Uda antenna with narrow spacing is examined by composing element d... [more] AP2009-162
pp.39-44
RCS, AP
(Joint)
2009-11-27
09:50
Tokyo Tokyo Inst. of Tech. Controlling of Impedance Matched Frequency by Loading Varactors and Proposal of Tunable Antenna Electromagnetically Fed by Wideband Antenna
Kyoichi Iigusa, Hiroshi Harada (NICT) AP2009-130
A technique to enhance the impedance matched frequency of an antenna is studied to apply it for a cognitive wireless com... [more] AP2009-130
pp.67-72
AP 2009-06-11
13:20
Tokyo Kikai-Shinko-Kaikan Bldg. Proposal, Basic Study and Basic Experiment of H-plane Sectoral Post-Wall Horn Antenna Connected with Tapered Slots for Millimeter-Wave
Kyoichi Iigusa, Jing Gao, Keren Li, Katsuyoshi Sato, Hiroshi Harada (NICT) AP2009-37
We propose a millimeter-wave antenna that can be composed by combining two or more printed boards. The radiation pattern... [more] AP2009-37
pp.1-6
ITS, IEE-ITS 2009-03-09
13:00
Kyoto Kyoto University Propagation characteristics for inter vehicle communication in 720MHz band in urban area
Katsuyoshi Sato, Kyoichi Iigusa, Hiroshi Harada (NICT) ITS2008-83
Interest in ITS (Intelligent Transport Systems) technology has been growing in recent years, because it may be used to a... [more] ITS2008-83
pp.1-6
IE, ITS, ITE-HI, ITE-ME, ITE-AIT 2009-02-05
10:50
Hokkaido Graduate School of Information Science and Technology Hokkaido Univ Propagation characteristics for inter vehicle communication in 720MHzat band at intersection structure
Katsuyoshi Sato, Kyoichi Iigusa, Hiroshi Harada (NICT) ITS2008-57 IE2008-227
Interest in ITS (Intelligent Transport Systems) technology has been growing in recent years, because it may be used to a... [more] ITS2008-57 IE2008-227
pp.133-138
AP 2008-12-11
13:20
Tokyo Kikai-Shinko-Kaikan Bldg. Proposal and Basic Study of an Impedance-Matching-Frequency Reconfigurable Electromagnetically Fed Inverted-F Antenna
Kyoichi Iigusa, Hiroshi Harada (National Inst. of Info and Com Tech.) AP2008-141
We propose an antenna composed of several inverted-F antennas, that can be impedance-matched in the frequency band compr... [more] AP2008-141
pp.7-12
AP 2008-10-16
13:50
Miyagi Tohoku Gakuin University roposal and Design of Yagi-Uda Antenna
Kyoichi Iigusa, Keren Li, Katsuyoshi Sato, Hiroshi Harada (NICT) AP2008-96
Planar three-element Yagi-Uda antenna is proposed as an ITS in-vehicle antenna in UHF band. One of the new attempts is t... [more] AP2008-96
pp.11-16
AP 2008-09-11
11:10
Kanagawa National Defense Academy Simulation Analysis Using Finite Element Method and Experiment for Frequency Response of Permeability of Radio Wave Shutter
Kyoichi Iigusa, Hiroshi Harada, Yoshiyuki Fujino (NICT) AP2008-79
 [more] AP2008-79
pp.25-30
AP, SAT
(Joint)
2008-07-23
14:50
Hokkaido Hokkaido University Proposal and Basic Studey of an Electromagnetically Fed Planar-Type Yagi-Uda Sector Antenna
Kyoichi Iigusa, Hiroshi Harada, Shuzo Kato (NICT) AP2008-46
We propose planar-type antenna that is made of stacked Yagi-Uda antennas in different directions. Each dipole is loaded ... [more] AP2008-46
pp.57-62
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