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All Technical Committee Conferences (Searched in: All Years)
| 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) |
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 (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 | 2022-04-15 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, 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 (2nd) |
2020-12-10 11:30 |
Okinawa | Nobumoto Ohama Memorial Hall (Primary: On-site, Secondary: Online) |
Experimental evaluation on optical leaky waveguide antenna by waffle-iron structure Shunichi Kaneoka, Wataru Iida, Hiroshi Hashiguchi, Toshihiko Baba, Hiroyuki Arai (Yokohama National Univ.) |
This paper presents a comparison of optical leaky-waveguide antennas, i.e., grating waveguide (GWG), waffle waveguide (W... [more] | |
| AP | 2019-03-14 14:20 |
Fukushima | Yunoya (Iizaka Onsen, Fukushima) | A Study on High gain Optical Leaky Wave Antenna as Base Station and Data Transmission Hiroshi Hashiguchi, Toshihiko Baba, Hiroyuki Arai (Yokohama Natl University) AP2018-189 |
[more] | AP2018-189 pp.19-22 |
| AP | 2018-10-19 10:20 |
Okayama | Okayama Univ. | A Study of Antenna Gain Enhancement of Optical Leaky Wave Antenna Hiroshi Hashiguchi, Toshihiko Baba, Hiroyuki Arai (YNU) AP2018-94 |
This paper presents antenna gain enhancement of optical leaky wave antennas (OLWAs). The antenna gain of OLWA is proport... [more] | AP2018-94 pp.31-34 |
| NS | 2017-10-26 16:40 |
Osaka | I-site nanba | [Invited Talk]
Human and information connected by networks in high performance sports. Kazuki Kusumoto (AJTA), Tetsuji Kakuichi (NISHI), Chiho Kato (AJTA), Hiroki Yamada (JSC), Takayuki Hisano (OUHS), Akinori Kanda (AJTA), Taisuke Sawada (SS), Hiroshi Hashiguchi (EO), Toshiaki Oda (HUTE), Takao Ohashi (KIT) NS2017-107 |
In this report, we report our on-site efforts for connecting between human and information by using networks for smoothl... [more] | NS2017-107 p.81 |
| AP | 2017-08-24 14:25 |
Hokkaido | National Institute of Technology, Hakodate College | Method of Plane Wave Excitation to Optical Leaky Waveguide Hiroshi Hashiguchi, Toshihiko Baba, Hiroyuki Arai (Yokohama Natl. Univ.) AP2017-76 |
This paper presents plane wave excitation to wide optical leaky waveguide antenna. In optical communications, high anten... [more] | AP2017-76 pp.45-48 |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | Gain enhancement of Optical Leaky Waveguide Antenna by Aperture Distribution Control Reiji Toda, Hiroshi Hashiguchi, Hiroyuki Arai (YNU) |
In this paper, we propose a gain improvement method by increasing the opening area of an optical leaky waveguide antenna... [more] | |
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