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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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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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