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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| ACT (2nd) |
2011-12-22 14:20 |
Okinawa | Measurement of Local SAR of Handset Antennas Using Broadband Wave Absorber Phantom Keita Ochiyama, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Hiroyuki Arai (Yokohama National Univ.), Toshiyasu Tanaka (Microwave Factory) |
[more] | ||
| AP, WPT (Joint) |
2011-10-14 16:00 |
Kanagawa | Kanagawa Womens Center | Design method of arbitral excitation coefficients in an unequally spaced collinear array antenna Junichi Shinohara, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Mohammad Tariqul Islam, Norbahiah Misran (UKM)  AP2011-87 |
Excitations for array elements of a linear array can be simplified by employing a collinear feed. Previously, excitation... [more] | AP2011-87 pp.61-66 |
| ACT (2nd) |
2011-09-02 14:25 |
Shimane | The Shimane Institute for Industrial Technology | Broadband Lightweight Phantom Composed of Wave Absorber for Simplified Local SAR Measurement Keita Ochiyama, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Hiroyuki Arai (Yokohama National Univ.), Toshiyasu Tanaka (Microwave Factory) |
[more] | |
| ACT (2nd) |
2010-12-22 15:00 |
Okinawa | Simplified Local SAR Measurement Method Using Electric Field Probe Embedded in Lightweight Phantom Tan Watanabe, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Hiroyuki Arai (Yokohama National Univ.), Toshiyasu Tanaka (Microwave Factory) |
In recent years, the use of wireless communication devices that are used in close proximity to the human body has been i... [more] | ||
| AP, RCS (Joint) |
2010-11-12 09:30 |
Fukui | Fukui Univ. | Electromagnetic field distribution of Very Small Normal-Mode Helical Antennas and Deterministic equation for the Self Resonant Structures Nguyen Quoc Dinh, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Koji Nakatani (The Yokohama Rubber Co., Ltd) AP2010-107 |
[more] | AP2010-107 pp.91-96 |
| AP | 2010-10-15 14:05 |
Iwate | Iwate Univ. | Leaky Wave Antenna Using Low-Profile and Broadband Composite Right/Left-Handed Transmission Line and Triangular Feed Element Woo-jin Kim, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) AP2010-85 |
Recently, the radio-on-fiber (ROF) system was proposed for mobile communication network in order to eliminate the radio ... [more] | AP2010-85 pp.67-72 |
| AP | 2010-05-14 12:15 |
Overseas | Southeast Univ. | Negative Refractive Lens Antenna Using Dielectric Metamaterial for Wide Angle Beam Scanning Shinji Kamada, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) AP2010-31 |
Recently, applications of metamaterials to negative refractive index lenses using composite right/left handed transmissi... [more] | AP2010-31 pp.99-104 |
| AP | 2010-04-09 11:20 |
Kyoto | Doshisha Univ. | Simple Design Equation of a Tap Feed for a Normal-Mode Helical Antenna Nguyen Quoc Dinh, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Koji Nakatani (The Yokohama Rubber Co., Ltd) AP2010-3 |
In order to apply a normal-mode helical antenna(NMHA) to actual radio equipments, a simple impedance matching structure ... [more] | AP2010-3 pp.9-14 |
| AP | 2010-03-08 12:30 |
Saitama | Saitama University | Low-Profile Radiation Pattern Controllable Antenna Using Composite Right/Left-Handed Parasitic Element Woo-jin Kim, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Junya Muramatsu, Toshiaki Watanabe, Kazuo Sato (Toyota Central R&D Labs.) AP2009-210 |
Recently, a vehicle is crowded with communication systems. There are few places for installing new system antennas. Furt... [more] | AP2009-210 pp.31-36 |
| ACT (2nd) |
2010-02-24 13:35 |
Tokyo | NICT | Simplified SAR Measurement Method Using Lightweight Human Head Phantom Tan Watanabe, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) |
Simplified SAR measurement method is needed for the legislation on local SAR for cellular phones. In this report, simpli... [more] | |
| RCS, AP (Joint) |
2009-11-27 09:00 |
Tokyo | Tokyo Inst. of Tech. | Design Optimization of Left-handed Dielectric Metamaterial Using a Level Set Based Structural Optimization Method Shintaro Yamasaki, Tsuyoshi Nomura, Kazuo Sato (Toyota Central R&D Labs., Inc.), Naobumi Michishita, Yoshihide Yamada (N.D.A) AP2009-128 |
The metamaterials are paid to attention and are investigated because these have the specific characteristics which the c... [more] | AP2009-128 pp.55-60 |
| AP | 2009-09-04 10:50 |
Aomori | Hachinohe Inst. of Tech. | Operating Principle of Tap Structures in the Very Small Normal Mode Helical Antenna Nguyen Quoc Dinh, Naobumi Michishita, Yoshihide Yamada (NDA), Koji Nakatani (Yokohama Rubber) AP2009-94 |
The normal-mode helical antenna becomes an efficient radiator in the condition of the self resonance. When the antenna s... [more] | AP2009-94 pp.85-90 |
| AP | 2009-09-04 11:15 |
Aomori | Hachinohe Inst. of Tech. | Top Loaded Monopole Antenna Using Triangular Radiating Element and Obliqued Short Pins with Folded Rim Woo-jin Kim, Naobumi Michishita, Yoshihide Yamada (NDA) AP2009-95 |
In recent years, the radio-on-fiber (ROF) system was proposed for mobile communication network in order to eliminate the... [more] | AP2009-95 pp.91-96 |
| AP, SAT (Joint) |
2009-07-08 10:55 |
Hokkaido | Otaru city, Hokkaido | Radiation characteristics of leaky wave antenna using CRLH transmission line for UHF band Shinji Kamada, Naobumi Michishita, Yoshihide Yamada (NDA) AP2009-45 |
Recently, a leaky wave antenna using a composite right/left handed (CRLH) technique has been studied in microwave and mi... [more] | AP2009-45 pp.7-12 |
| AP | 2009-03-09 15:45 |
Overseas | University of Macau | Electrical Performances of the Low Profile Normal Mode Helical Antenna in a Metal Proximity Use Won Gook Hong, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) AP2008-219 |
The low profile small normal mode helical antenna that can be used above metallic plates has been developed. In this pap... [more] | AP2008-219 pp.41-44 |
| AP | 2008-10-17 14:50 |
Miyagi | Tohoku Gakuin University | Polarization-Dependent Dielectric-Resonator-Based Metamaterial Leaky Wave Antenna Naobumi Michishita (National Defense Academy), Tetsuya Ueda (Kyoto Institute of Technology), Yoshihide Yamada (National Defense Academy), Tatsuo Itoh (Univ. of California) AP2008-106 |
[more] | AP2008-106 pp.65-70 |
| AP | 2008-09-12 11:35 |
Kanagawa | National Defense Academy | Design and performance of an array feed for wide angle beam scanning dielectric lens antenna Yosuke Tajima, Shinji Kamada, Naobumi Michishita, Yoshihide Yamada (NDA) AP2008-93 |
For the Intelligent Transportation System, authors developed the shaped dielectric lens antenna that was capable of wide... [more] | AP2008-93 pp.107-112 |
| AP, SAT (Joint) |
2008-07-25 15:40 |
Hokkaido | Hokkaido University | Band Rejection Characteristics of Dipole Antenna with Parasitic Element Composed of Composite Right/Left-Handed Transmission Line Akiyoshi Abe, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Junya Muramatsu, Toshiaki Watanabe, Kazuo Sato (Toyota Central R&D Labs) AP2008-69 |
A dipole antenna composed of composite right/left-handed transmission line (CRLH TL) has been proposed. The antenna is c... [more] | AP2008-69 pp.183-188 |
| AP | 2008-01-23 15:20 |
Okinawa | Tyeruru.(Naha) | Analysis of Wide Angle Beam Scanning Abilities of Shaped Dielectric Lens Antenna by EM Simulator Yosuke Tajima, Yoshihide Yamada (NDA) AP2007-128 |
For the Intelligent Transportation System, authors developed the shaped dielectric lens antenna that was capable of wide... [more] | AP2007-128 pp.33-38 |
| AP | 2008-01-24 15:20 |
Okinawa | Tyeruru.(Naha) | Dual Resonance Folded Dipole Antenna for Digital Television Satoru Horiuchi, Shingo Tanaka (Yazaki), Yoshihide Yamada (NDA), Yasunori Atsumi (Yazaki) AP2007-145 |
Wireless communication systems have been developed increasingly in a past few years, and the wideband antennas are reque... [more] | AP2007-145 pp.135-140 |
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