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 (National Defense Academy), Hiroshi Sato, Yoshio Koyanagi (PSNRD), Hisashi Morishita (National Defense Academy) 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 |
2024-03-14 13:25 |
Fukui |
UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
[Invited Talk (Young Researcher)]
Design Method of Platform Excitation Antenna and Feeding Structure Takumi Nishime, Hiroshi Hashiguchi, Naobumi Michishita (National Defense Academy) AP2023-205 |
Miniaturization and low-profile are required for mobile device antennas. On the other hand, miniaturization and low prof... [more] |
AP2023-205 pp.23-28 |
AP |
2024-02-16 16:00 |
Mie |
Sinfonia Technology Hibiki Hall Ise (Primary: On-site, Secondary: Online) |
Wideband Vertical Polarized Omnidirectional Antenna Using Cylindrical Slot Loop Sho Hirano, Tomokazu Mizutani, Hiroshi Hashiguchi, Naobumi Michishita (National Defense Academy) AP2023-199 |
[more] |
AP2023-199 pp.62-65 |
AP, WPT (Joint) |
2024-01-18 15:45 |
Niigata |
Tokimate, Niigata University (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Gain Enhancement of Low-profile Folded Dipole Antenna Array Go Kasahara, Takumi Nishime, Hiroshi Hashiguchi, Naobumi Michishita (National Defense Academy) AP2023-174 |
The gain of a low-profile antenna can be improved by loading a dielectric layer. In this report, we investigate a low-pr... [more] |
AP2023-174 pp.77-80 |
AP (2nd) |
2024-01-08 - 2024-01-10 |
Overseas |
EPU, Hanoi |
Transmit array elements that tilt beam through glass using Huygens' metamaterials. Kenta Fujii, Keizo Cho (CIT), Naobumi Michishita (NDA), Hiroaki Nakabayashi (CIT), Takayoshi Sasaki, Warangkana Chaihongsa, Keisuke Sato, Ichiro Oshima (DKK) |
In this paper, we discuss the design of a transmit array capable of transmitting 28 GHz band radio waves through glass w... [more] |
|
AP (2nd) |
2023-12-07 14:15 |
Wakayama |
Kiboukan (Nanki Shirahama) |
Simple Measurement Method for Reflectarray Using Monostatic-Bistatic Equivalence Theorem Keiji Swairi, Hiroshi Hashiguchi, Naobumi Michishita (National Defense Academy) |
In fifth-generation mobile communications, coverage holes are concerned due to the use of millimeter-wave bands. Reflect... [more] |
|
AP, RCS (Joint) |
2023-11-17 14:30 |
Kumamoto |
Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Mutual coupling suppression by a square rod mantle cloak antenna with strip conductors Shuhei Ozawa, Hiroshi Hashiguchi, Naobumi Michishita (National Defense Academy), Kiyoshi Sakimoto, Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber Co., Ltd.) AP2023-153 |
Various mantle-cloak antennas have been proposed to suppress mutual coupling. However, the bandwidth between operating f... [more] |
AP2023-153 pp.121-126 |
AP |
2023-05-12 14:40 |
Okinawa |
Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
Mantle Cloak Antennas with Rejection Band in Close Frequency Naobumi Michishita, Shuhei Ozawa, Hiroshi Hashiguchi (National Defense Academy), Kiyoshi Sakimoto, Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber Co., Ltd.) AP2023-21 |
Various mantle-cloak antennas have been proposed to suppress mutual coupling. However, the operating frequency band and ... [more] |
AP2023-21 pp.70-74 |
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 |
2023-02-16 14:15 |
Miyagi |
Tohoku University, Aobayama Campus (Primary: On-site, Secondary: Online) |
[Invited Lecture]
A Compact Beam Forming Antenna based on Phase Gradient Huygen's Transmitarray and Fabry-Perot Antenna Source Takayoshi Sasaki, Tanan Hongnara, Yoshiki Shirasawa, Warangkana Chaihongsa, Katsumori Sasaki, Keisuke Sato, Ichiro Ohshima (DKK), Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA) AP2022-217 |
In this report, we propose a compact and low profile antenna with controllable directivity by combining a Fabry-Perot re... [more] |
AP2022-217 pp.111-115 |
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 |
2022-08-19 11:20 |
Tochigi |
Tochigi Prefecture Industrial Center (Primary: On-site, Secondary: Online) |
Dual-Polarized Bipartite Huygens' Metasurface with Anomalous Wave Reflection for Local 5G Application at 28.25 GHz Tanan Hongnara, Takayoshi Sasaki, Yoshiki Shirasawa, Katsumori Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Naobumi Michishita (NDA), Hiroaki Nakabayashi, Keizo Cho (CIT) AP2022-66 |
This paper presents a design of dual-polarized bipartite Huygens’s metasurface (HMTS) for Local 5G application at 28.25 ... [more] |
AP2022-66 pp.11-16 |
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 12:40 |
Hokkaido |
Asahikawa Taisetsu Crystal Hall (Primary: On-site, Secondary: Online) |
A Study of equivalent circuit parameters of Huygens' metasurface lense capable of changing transmission phase with low loss Maria Ishida, Keizo Cho (Chiba Inst of Tech), Naobumi Michishita (National Defense Academy), Tanan Hongnara, Takayoshi sasaki, Warangkana Chaihongsa, Keisuke Sato, Ichiro Oshima (DKK), Hiroaki Nakabayashi (Chiba Inst of Tech) AP2022-58 |
Huygens metasurfaces have attracted attention as a method of constructing thin lenses. In this report, we present the re... [more] |
AP2022-58 pp.135-139 |
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 (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] |
|