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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, AP, UWT (Joint) |
2020-11-25 12:10 |
Online | Online | Broadband High-gain Beam-scanning Phased Lens Arrays in 300GHz band Kunio Sakakibara, Akira Yamano, Naoya Toshida, Daichi Takeshima, Ryota Ishihara, Shota Mariyama, Henry Diawuo Abu, Rohani Baker, Yoshiki Sugimoto, Nobuyoshi Kikuma (NITech), Yoshihide Yamada (UTM-MJIIT), Nurul Huda Abd Rahman (UiTM)  AP2020-79 |
Broadband antennas which cover wide angular area with high gain are expected for high-speed huge-capacity wireless commu... [more] | AP2020-79 pp.33-38 |
| AP (2nd) |
Overseas | Hotel Istana, Kuala Lumpur | Fabrication of Human Body Phantom for Body Communication at 2.4 GHz Nurul Najwa Mohd Nizam, Kamilia Kamardin, Yoshihide Yamada, Izni Husna Idris (UTM), Nurul Huda Abd Rahman (UiTM), Hazilah Mad Kaidi (UTM) |
Recently, research on the human body phantom is gaining attention. This research is intending to investigate the electro... [more] | ||
| AP (2nd) |
Overseas | Hotel Istana, Kuala Lumpur | Input Resistance Increases of NMHA in Fat Phantom Norsiha Zainudin (University of Malaya), Seah Shin Yean, Yoshihide Yamada, Kamilia Kamardin (MJIIT UTM), Tarik Abdul Latef (University of Malaya) |
Recently, the development of healthcare monitoring devices require sensor antennas with high performance and small size.... [more] | ||
| AP (2nd) |
2018-05-30 14:05 |
Overseas | The University of Da nang, University of Science and Technology | Simulation results of input resistance dependence on dielectric constants of materials surrounding a normal-mode helical antenna Dang Tien Dung, Nguyen Quoc Dinh, Kieu Khac Phuong (LQDTU), Le Trong Trung (TCU), Yoshihide Yamada (UTM), Naobumi Michishita (NDA) |
Currently, normal-mode helical antennas (NMHA) are studying for use as in Radio Wave Sensor (RWS) in the human body. The... [more] | |
| AP (2nd) |
2016-03-01 10:40 |
Overseas | Telecommunications University, Nha Trang, Vietnam | Wideband Characteristics of Density Tapered Array Antennas Nguyen Thanh Binh (TCU), Trinh Kim Tuyen, Nguyen Quoc Dinh, Tran Nguyen Thi Nhat Le (LQDU.), Yoshihide Yamada (MJIIT), Naobumi Michishita (NDA) |
In the next generation (5G) mobile base station antennas, multi beam and wideband characteristics are requested in addit... [more] | |
| AP (2nd) |
2016-03-01 14:35 |
Overseas | Telecommunications University, Nha Trang, Vietnam | Electrical Performances of Normal-Mode Helical Antennas Used in a Human Body Nguyen Thanh Tuan, Yoshihide Yamada (MJIIT, Universiti Teknologi Malaysia), Dang Tien Dung (TCU), Le Thi Kim Bong, Nguyen Quoc Dinh (LQDU), Naobumi Michishita (NDA) |
In the case of human health care, many types of radio sensors are considered to put inside human body. For this purpose,... [more] | |
| AP (2nd) |
2015-01-08 11:25 |
Overseas | PTIT, Ho Chi Minh City, Vietnam | The Design of a Shaped Beam for an Unequally Spaced Mobile Base Station Antenna Tran Thi Thuong Thuong, Trinh Kim Tuyen, Nguyen Quoc Dinh (Le Quy Don Tech. Univ.), Naobumi Michishita, Yoshihide Yamada (NDA) |
In order to achieve a uniform illumination in the own radio zone and suppress interferences for other radio zones, unsym... [more] | |
| AP | 2014-05-30 15:10 |
Okinawa | Okinawa Industory Support Center | Experimental Evaluation of Phase Shifter for Dual Frequency Base Station Antenna Using Composite Right/Left-Handed Transmission Line on Dielectric Substrate Naobumi Michishita, Yoshihide Yamada (NDA), Keizo Cho (Chiba Inst. of Tech.), Takuya Seki, Ichiro Oshima (Denki Kogyo) AP2014-38 |
[more] | AP2014-38 pp.99-102 |
| AP | 2014-04-17 13:25 |
Kyoto | Ritsumeikan University (Suzaku Campus) | Capacity Improvement of Base Station Antenna Equipped Frequency Dispersive Phase Shifter in Multi-Cell Environment Tatsuya Magome, Keizo Cho (Chiba Inst. of Tech.), Naobumi Michishita, Yoshihide Yamada (National Defense Accademy) AP2014-5 |
[more] | AP2014-5 pp.25-30 |
| AP (2nd) |
2014-01-10 11:30 |
Overseas | Le Quy Don Technical University (Hanoi, Vietnam) | Comparisons of Calculation Methods for RCS Values of a Scale Model Airplane Tadashi Chisaka, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) |
[more] | |
| AP (2nd) |
2014-01-10 15:40 |
Overseas | Le Quy Don Technical University (Hanoi, Vietnam) | Effective Permittivity Design of Metamaterial Structure for Small Dipole Antennas Covered with Epsilon Negative Shell Katsuya Mouri, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) |
[more] | |
| AP, PEM (2nd) |
2013-12-20 15:40 |
Okinawa | Nobumoto Ohama Memorial Hall (Ishigaki) | Calculated and Measured RCS Values of a Scale Model Airplane Tadashi Chisaka, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) |
[more] | |
| AP | 2013-08-29 16:25 |
Kanagawa | Yokosuka | [Special Talk]
Antenna characteristics found out through electromagnetic simulation Yoshihide Yamada (National Defense Academy) |
[more] | |
| AP | 2013-08-30 13:25 |
Kanagawa | Yokosuka | Small Dipole Antenna Covered with Spherical Negative Epsilon Metamaterial Shell Katsuya Mouri, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) AP2013-74 |
[more] | AP2013-74 pp.69-72 |
| AP (2nd) |
2013-05-31 14:00 |
Ehime | Matsuyama Multi-Purpose Community Center | Mutual Coupling Reduction of Transmitting and Receiving Horns for RCS Measurement Tadashi Chisaka, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) |
[more] | |
| AP | 2013-01-23 15:50 |
Miyazaki | Hotel Merieges (Miyazaki City) | Relations of Electric and Magnetic Energies at Self-resonant Normal-Mode Helical Antennas Katsuya Mouri, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) AP2012-132 |
[more] | AP2012-132 pp.59-62 |
| AP (2nd) |
2012-06-08 11:25 |
Kochi | Kochi Prefectural Culture Hall | Simplified SAR Measurement Method Using Broadband Solid Phantom Keita Ochiyama, Naobumi Michishita, Yoshihide Yamada (National Defense Academy), Hiroyuki Arai (Yokohama National Univ.), Toshiyasu Tanaka (Microwave Factory) |
A simplified SAR measurement method using a wave absorber phantom has been proposed. Since the surface electric field of... [more] | |
| AP | 2012-05-25 10:55 |
Fukuoka | ACROS Fukuoka | Composite Right/Left-Handed Phase Shifter for Realizing Different Beam Tilting Angle in Dual Frequency Base Station Antenna Naobumi Michishita, Hirohisa Kitahara, Yoshihide Yamada (National Defense Academy), Keizo Cho (Chiba Institute of Technology) AP2012-22 |
In the conventional multi-frequency base station antenna, the beam tilting angle becomes frequency-independent due to be... [more] | AP2012-22 pp.61-64 |
| AP | 2012-01-18 11:20 |
Fukuoka | Kyushu Inst. of Tech. | Small Broadband Handset Antenna Using Composite Right/Left-Handed Transmission Line Hirohisa Kitahara, Naobumi Michishita, Yoshihide Yamada (National Defense Academy) AP2011-150 |
Recently, small handset antenna has been investigated. In this paper, a small broadband antenna using a composite right/... [more] | AP2011-150 pp.25-30 |
| AP | 2012-01-10 10:05 |
Okinawa | Tenbusu Naha | Small Broadband Antenna Using Composite Right/Left-Handed Transmission Line for Mobile Handsets Naobumi Michishita, Hirohisa Kitahara, Yoshihide Yamada (National Defense Academy) AP2011-126 |
Recently, small handset antenna has been investigated. In this paper, a small broadband antenna using a composite right/... [more] | AP2011-126 pp.1-2 |
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