Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP |
2024-03-14 13:00 |
Fukui |
UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
[Invited Talk (Young Researcher)]
Miniaturized structure of orthogonally polarized omnidirectional antenna with wideband characteristics Tomokazu Mizutani, Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Hiroshi Sato, Yoshio Koyanagi (PSNRD) AP2023-204 |
Recently, antennas for mobile stations and base stations are required to have a wideband antenna due to the diversificat... [more] |
AP2023-204 pp.17-22 |
AP |
2023-03-17 13:10 |
Toyama |
Toyama Prefectural Civic Hall (Primary: On-site, Secondary: Online) |
[Invited Talk (Young Researcher)]
A Study on Decoupling Method Operating at Single and Dual-Frequency for Planar Inverted-F Antennas by Using Parasitic Elements and Bridge Line Quang Quan Phung, Naobumi Michishita (NDA), Hiroshi Sato, Yoshio Koyanagi (Panasonic), Hisashi Morishita (NDA) AP2022-247 |
In recent years, Multiple-Input Multiple-Output (MIMO) is known as an elemental technology for next-generation communica... [more] |
AP2022-247 pp.76-80 |
AP (2nd) |
2022-12-08 14:40 |
Okinawa |
(Primary: On-site, Secondary: Online) |
Measurement of Bistatic RCS Characteristics for Incident angle of Reflectarray by Source Reconstrcution Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Hiromi Matsuno, Takuya Ohto, Masayuki Nakano (KDDI Research, Inc) |
[more] |
|
AP, SANE, SAT (Joint) |
2022-07-27 14:30 |
Hokkaido |
Asahikawa Taisetsu Crystal Hall (Primary: On-site, Secondary: Online) |
A Study on Increasing the Bandwidth of Orthogonally Polarized Omnidirectional Antenna Using Halo Antenna Tomokazu Mizutani, Naobumi Michishita (NDA), Hiroshi Sato, Yoshio Koyanagi (PSNRD), Hisashi Morishita (NDA) AP2022-41 |
Recently, orthogonal polarization MIMO antennas have attracted attention as antennas for cell phone base stations. In th... [more] |
AP2022-41 pp.40-43 |
AP, SANE, SAT (Joint) |
2022-07-29 13:05 |
Hokkaido |
Asahikawa Taisetsu Crystal Hall (Primary: On-site, Secondary: Online) |
A Study on Decoupling Method for Multiple Planar Inverted-F Antennas by Using Parasitic Elements and Bridge Lines Phung Quang Quan, Naobumi Michishita (NDA), Hiroshi Sato, Yoshio Koyanagi (Panasonic), Hisashi Morishita (NDA) AP2022-59 |
In recent years, Multiple-Input Multiple-Output (MIMO) is known as an elemental technology for next-generation communica... [more] |
AP2022-59 pp.140-144 |
AP (2nd) |
2022-06-10 10:35 |
Hokkaido |
Nemuro General Cultural Center (Primary: On-site, Secondary: Online) |
Characteristics of an Antenna Composed of Metal Box with a Slot and Inner Folded Dipole Element Yukiko Wada, Naobumi Michishita, Hisashi Morishita (NDA), Atsushi Yamamoto, Kazuhiro Matsumoto, Tetsuya Hishikawa (Panasonic Corp.) |
[more] |
|
AP (2nd) |
2022-06-10 11:00 |
Hokkaido |
Nemuro General Cultural Center (Primary: On-site, Secondary: Online) |
A Helmet Antenna with Disk-Loaded Monopole Structure for Disaster Prevention Taiyo Kai, Naobumi Michishita, Hisashi Morishita (NDA) |
[more] |
|
AP |
2022-04-15 11:25 |
Yamagata |
Yamagata Syokuryo Kaikan (Primary: On-site, Secondary: Online) |
Excitation of Traveling Wave on Metal Casing Using Folded Dipole Antenna Takumi Nishime, Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2022-5 |
Multiple antennas have been installed on mobile devices. Frequency bands used for communication are shifting to higher f... [more] |
AP2022-5 pp.24-27 |
AP |
2022-03-10 16:25 |
Online |
Online |
[Invited Talk (Young Researcher)]
Mutual Coupling Reduction Between Antennas by Using Electromagnetic Cloaking Thanh Binh Nguyen, Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber Co., Ltd.) AP2021-191 |
Recently, with the increase in 5G and IoT (Internet of Thing) devices, the interference inside and outside wireless devi... [more] |
AP2021-191 pp.50-55 |
AP |
2022-02-18 10:25 |
Online |
Online |
[Invited Lecture]
Various decoupling methods between MIMO antennas Part 2. Hiroshi Sato, Yoshio Koyanagi (Panasonic), Masaharu Takahashi (Chiba university), Hisashi Morishita (National Defense Academy) AP2021-169 |
In order to realize large-capacity wireless communication, it is common to install MIMO technology in a small terminal. ... [more] |
AP2021-169 pp.61-66 |
AP (2nd) |
2021-12-02 11:10 |
Okinawa |
Miyakojima (Primary: On-site, Secondary: Online) |
A Study on Decoupling Method Operating at Single and Dual-Frequency for Planar Inverted-F Antennas by Using Parasitic Elements Quang Quan Phung, Naobumi Michishita (National Defense Academy), Hiroshi Sato, Yoshio Koyanagi (Panasonic System Networks R&D Lab.), Hisashi Morishita (National Defense Academy) |
In recent years, Multiple-Input Multiple-Output (MIMO) is known as an elemental technology for next-generation communica... [more] |
|
AP, RCS (Joint) |
2021-11-12 10:20 |
Nagasaki |
NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
Orthogonal Polarized Antenna Using Wideband Halo Antenna Tomokazu Mizutani, Naobumi Michishita (NDA), Hiroshi Sato, Yoshio Koyanagi (Panasonic), Hisashi Morishita (NDA) AP2021-122 |
[more] |
AP2021-122 pp.112-115 |
AP, RCS (Joint) |
2021-11-12 10:55 |
Nagasaki |
NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
Study on reduction of electromagnetic coupling between two antennas using Characteristic Mode Analysis Hiroshi Sato (Panasonic), Phung Quang Quan (NDA), Yoshio Koyanagi (Panasonic), Hisashi Morishita (NDA) AP2021-123 |
In order to reduce the size of information terminals, it is necessary to minimize the required volume of antennas by arr... [more] |
AP2021-123 pp.116-121 |
AP, RCS (Joint) |
2021-11-12 11:20 |
Nagasaki |
NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
A Sidelobe Reduction for Dual Frequency and Polarization Reflectarray Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Hiromi Matsuno, Takuya Ohto, Masayuki Nakano (KDDI Research, Inc) AP2021-124 |
[more] |
AP2021-124 pp.122-125 |
MIKA (3rd) |
2021-10-29 10:30 |
Okinawa |
(Primary: On-site, Secondary: Online) |
[Poster Presentation]
Planar Sleeve Antenna with Choke Structure Composed of Zeroth-Order Resonator Keisuke Sakakibara, Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy) |
A choke structure of the sleeve antenna is required to suppress the leakage current. However, the choke length is 1/4 wa... [more] |
|
AP, SANE, SAT (Joint) |
2021-07-29 10:50 |
Online |
Online |
Planar Sleeve Antenna with Choke Structure Composed of Zeroth-Order Resonator Keisuke Sakakibara, Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2021-34 |
A choke structure is required to suppress the leakage current of the sleeve antenna. The miniaturized sleeve antenna has... [more] |
AP2021-34 pp.61-64 |
AP (2nd) |
2021-06-18 11:05 |
Online |
Online |
Measurement of Cylindrical Cloak by Controlling Arrangement Density of Multi-Layer Ceramic Capacitors Thanh Binh Nguyen, Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (Yokohama Rubber Co., Ltd) |
[more] |
|
AP |
2021-06-17 15:05 |
Online |
Online |
[Invited Lecture]
RCS Measurement Using Compact Range System Hisashi Morishita (National Defense Academy) AP2021-22 |
Radar Cross Section (RCS) are used not only in aircraft and ships but also in automobiles and human fingers, which is im... [more] |
AP2021-22 pp.19-24 |
AP |
2021-05-21 09:45 |
Online |
Online |
Mutual Coupling Reduction Between Dipole Antennas Using Mantle Cloak Thanh Binh Nguyen, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (Yokohama Rubber Co., Ltd.) AP2021-10 |
Recently, systems such as mobile terminals and digital terrestrial television broadcasting, ITS, RFID are used in the UH... [more] |
AP2021-10 pp.7-11 |
AP (2nd) |
2020-12-10 09:35 |
Okinawa |
Nobumoto Ohama Memorial Hall (Primary: On-site, Secondary: Online) |
Bistatic RCS Measurement of Dual Band and Dual Polarized Reflectarray Cong Oai Nguyen, Kazuya Matsubayashi, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Hiromi Matsuno, Satoshi Ito, Takahiro Hayashi, Masayuki Nakano (KDDI Research) |
In the fifth generation wireless communication systems, high frequency band such as the 28 GHz is used to high data rate... [more] |
|