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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 09:25 |
Online | Online | Mantle Cloak Antenna by Controlling Surface Reactance of Dielectric Loaded Dipole Antenna Thanh Binh Nguyen, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber Co., Ltd.)  AP2020-73 |
Recently, antennas for various systems are often placed in proximity in a narrow space with the miniaturization of wirel... [more] | AP2020-73 pp.1-6 |
| MW, AP (Joint) |
2020-09-25 09:00 |
Online | Online | A Study on Decoupling Method for Two PIFAs Using Parasitic Elements and Consideration by Characteristic Mode Analysis Quang Quan Phung, Naobumi Michishita (NDA), Hiroshi Sato, Yoshio Koyanagi (Panasonic), Hisashi Morishita (NDA) AP2020-59 |
Recently, Massive MIMO (Multiple-Input Multiple-Output) has been developed as an elemental technology for next-generatio... [more] | AP2020-59 pp.116-120 |
| MW, AP (Joint) |
2020-09-25 09:25 |
Online | Online | A Study on Reduction of Electromagnetic Coupling between Symmetric Antennas Using Even-odd Mode Analysis Hiroshi Sato (panasonic), Phung Quang Quan (NDA), Kazuhiro Eguchi, Yoshio Koyanagi (panasonic), Hisashi Morishita (NDA) AP2020-60 |
In recent information terminals, MIMO technology that uses multiple antennas is often used for stable communication of l... [more] | AP2020-60 pp.121-126 |
| AP (2nd) |
2020-08-24 14:35 |
Online | Online | Study on the Configuration of Slit on Bowtie Antenna for Miniaturization and Bandwidth Enhancement Hikaru Takizawa, Kazuya Matsubayashi, Naobumi Michishita, Hisashi Morishita (National Defense Academy) |
A folded bow-tie antenna is one of the small and wideband antennas. Miniaturization of the folded bow-tie antenna is p... [more] |
|
| AP | 2020-08-21 09:00 |
Online | Online | Dual Frequency and Polarized Reflectarray Using Cross Dipole and Patch Elements Cong Oai Nguyen, Naobumi Michishita, Hisashi Morishita (Natinal Defense Acad.), Hiromi Matsuno, Satoshi Ito, Takahiro Hayashi, Masayuki Nakano (KDDI Research) AP2020-23 |
[more] | AP2020-23 pp.1-4 |
| AP | 2020-05-21 13:00 |
Okinawa | Tiruru Okinawa (Naha-city) (Cancelled, technical report was not issued) |
Dual Frequency and Polarized Reflectarray Using Cross Dipole and Patch Elements Cong Oai Nguyen, Naobumi Michishita, Hisashi Morishita (National Defense Acad.), Hiromi Matsuno, Satoshi Ito, Takahiro Hayashi, Masayuki Nakano (KDDI Research) |
[more] | |
| AP | 2020-04-24 09:40 |
Mie | Jingu-kaikan (Ise) (Cancelled but technical report was issued) |
Improvement of Radiation Efficiency by Slot Elements on Metal Box Using Characteristic Mode Analysis Takumi Nishime, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2020-4 |
[more] | AP2020-4 pp.19-22 |
| AP, WPT (Joint) |
2020-01-23 11:10 |
Kagawa | Sunport Hall Takamatsu | Triple Resonances Small Spherical Antenna with Parasitic Elements Hikaru Takizawa, Takahiro Hashimoto, Takumi Nishime, Nguyen Cong Oai, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2019-156 |
A small spherical antenna is one of the electrically small antennas which has Q-factor approaching the lower bound on Q.... [more] | AP2019-156 pp.37-41 |
| AP, WPT (Joint) |
2020-01-23 16:00 |
Kagawa | Sunport Hall Takamatsu | Circular Folded Dipole Antenna for RFID Tag on Metallic Cylinder Takahiro Hashimoto, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Takayuki Koshi (Komatsu Ltd.) AP2019-162 |
Recently, the use of UHF (Ultra-High Frequency) RFID (Radio-Frequency Identification) technology has been studied to man... [more] | AP2019-162 pp.67-72 |
| AP | 2019-08-23 10:20 |
Hokkaido | Hokkai-Gakuen Univ. | A Fundamental Study of Impedance Variable Folded Monopole Antenna Using Switching Element Yuta Nakagawa, Oai Nguyen Cong, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2019-65 |
In order to achieve an antenna with robustness to metal for closed space wireless communications, the impedance characte... [more] | AP2019-65 pp.97-100 |
| AP, SANE, SAT (Joint) |
2019-07-18 10:50 |
Miyagi | Tohoku Univ. | Study on Miniaturization of Bowtie Antenna with Folded Structure for Ground Penetrating Radar Hikaru Takizawa, Kazuya Matsubayashi, Naobumi Michishita, Hisashi Morishita (NDA) SANE2019-28 |
The antenna of GPR(Ground Penetrating Radar) used for the exploration such as buried objects under rubble at the time of... [more] | SANE2019-28 pp.55-59 |
| AP (2nd) |
2019-06-25 15:25 |
Hokkaido | Wakkanai City Japan-Russia Friendship Hall | Leakage current suppression of broadband monocone antenna by using electromagnetic band gap characteristics Kazuya Matsubayashi, Naobumi Michishita, Hisashi Morishita (NDA) |
The composite right/left-handed (CRLH) coaxial line (CL) is applied to the broadband choke structure for a monocone ante... [more] | |
| RCS, AP (Joint) |
2018-11-22 09:50 |
Okinawa | Okinawa Industry Support Center | Thin Cylindrical Cloaking Using Multi-layer Ceramic Capacitors Nguyen Thanh Binh, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber Co., Ltd.) AP2018-129 |
Recently, electromagnetic cloaking designed based on the transformation electromagnetics has attracted much attention. T... [more] | AP2018-129 pp.157-160 |
| AP | 2018-08-23 13:35 |
Saitama | Nippon Inst. of Tech. | A fundamental Study on Near-metal-Insensitive antenna for installation on metal walls Yuta Nakagawa, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2018-72 |
In order to achieve a near-metal-insensitive antenna for closed-space wireless communications, the impedance characteris... [more] | AP2018-72 pp.29-33 |
| AP | 2018-08-23 15:10 |
Saitama | Nippon Inst. of Tech. | [Tutorial Lecture]
Electromagnetic Metamaterials for Antenna Applications Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2018-75 |
Electromagnetic metamaterials are defined as artificial effectively homogeneous electrmagnetic structures with unusual p... [more] | AP2018-75 pp.45-50 |
| AP (2nd) |
2018-06-29 11:10 |
Tokyo | Jinbo-cho Takahashi Bldg. 7F | Monostatic RCS Measurement of Metasurfaces Using Multi-Layer Ceramic Capacitors Naoyuki Kinai, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber Co., Ltd.) |
To miniaturize the size of the unit cell structure for the metasurface, this paper presents the metasurface using multi-... [more] | |
| AP | 2018-06-21 13:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Study of Low-Profile Cone Antenna with Trapezoidal Shaped Element Kazuya Matsubayashi, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2018-39 |
Small and low-profile antenna is necessary for moving vehicle to communicate various information. However, downsizing of... [more] | AP2018-39 pp.9-13 |
| AP (2nd) |
2018-05-30 09:50 |
Overseas | The University of Da nang, University of Science and Technology | Characteristics of Folded Bow Tie Antenna with a Reflector Jun Abiru, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Kenji Kawabata, Yasuhiro Murakami (Fujitsu) |
Broadband and small antennas have been required for various applications, such as high speed data communication and subs... [more] | |
| AP (2nd) |
2018-05-30 10:25 |
Overseas | The University of Da nang, University of Science and Technology | Left-Handed Metamaterial Composed of Multi-Layer Ceramic Capacitors and Strip Conductors Thanh Binh Nguyen, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber) |
A composition of a split ring resonator and a strip conductor, a composition of a multilayer ceramic capacitor (MLCC) an... [more] | |
| AP (2nd) |
2018-05-30 10:45 |
Overseas | The University of Da nang, University of Science and Technology | Metasurfaces Composed of Multi-Layered Ceramic Capacitors Mounted on Dielectric Substrate for Radar Cross Section Reduction Naoyuki Kinai, Naobumi Michishita, Hisashi Morishita (National Defense Academy), Teruki Miyazaki, Masato Tadokoro (The Yokohama Rubber Co., Ltd.) |
Typical metasurface structures consist of patch and mushroom structures. To reduce the size of the unit cell structure, ... [more] | |
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