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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2023-10-19 10:00 |
Iwate | Iwate University (Primary: On-site, Secondary: Online) |
[Poster Presentation]
High Crossover Level Design of a 300 GHz Band Multi-beam Spherical Homogeneous Dielectric Lens Antenna Takeyuki Tsuchida, Yoshiki Sugimoto, Kunio Sakakibara, Nobuyoshi Kikuma (NITech)  AP2023-93 |
Dielectric lens antennas are suited for use as antennas in 300 GHz band because they can easily achieve high gain with l... [more] | AP2023-93 pp.27-31 |
| AP | 2023-05-11 10:30 |
Okinawa | Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
Spherical Cap Structure MIMO-OTA Apparatus for Generating the Cluster Propagation Environments Kazuhiro Honda (Univ. of Toyama) AP2023-8 |
In order to realize the cluster propagation environments that forms a Gaussian distribution in the vertical and horizont... [more] | AP2023-8 pp.1-6 |
| AP, MW (Joint) |
2022-09-16 12:25 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
Bandwidth Enhancement of a Spherical Helix Antenna with Multi-Mode Excitation Takuma Shimada (MIT), Mina Nishie, Keisuke Noguchi (KIT), Keisuke Fujita (MIT) AP2022-89 |
We propose the electrically small spherical helix antenna (SHA) with a folded structure to achieve broadbanding by using... [more] | AP2022-89 pp.100-105 |
| AP | 2021-06-17 15:30 |
Online | Online | [Invited Lecture]
Phase retrieval method and its applications Hiroyuki Arai (Yokohama National Univ.) AP2021-23 |
This reports presents the summary and application of Phase Retrieval (PR) method in which the phase information is recon... [more] | AP2021-23 pp.25-30 |
| 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 11:25 |
Kagawa | Sunport Hall Takamatsu | A Hemi Spherical Self-Complementary Spiral Antenna with Ground Plane Kazuki Kamiyama, Atsushi Katsuta, Hiroyuki Arai (YNU) AP2019-157 |
Miniaturization of antennas is known rule of thumb that the Q value, the gain, the radiation efficiency are correlated ... [more] |
AP2019-157 pp.43-44 |
| AP, WPT (Joint) |
2020-01-24 10:50 |
Kagawa | Sunport Hall Takamatsu | [Tutorial Lecture]
Research on optimal small antennas using the spherical wave expansion Keisuke Fujita (Maebashi Tech.) AP2019-169 |
The optimum current on electrically small spherical antennas is obtained using the spherical wave expansion. The radiati... [more] | AP2019-169 pp.105-109 |
| RCS | 2018-04-23 11:20 |
Yamaguchi | Hotel New Tanaka, Yuda Onsen | Optimization of Beam Patterns for Analog Beamforming of Single User Massive MIMO Transmissions Maki Arai, Kei Sakaguchi, Kiyomichi Araki (Tokyo Inst. of Tech.) RCS2018-5 |
This paper proposes optimal beam patterns of analog beamforming for SU (Single User) massive MIMO (Multi-Input Multi-Out... [more] | RCS2018-5 pp.25-30 |
| AP, WPT (Joint) |
2018-01-18 10:15 |
Nara | ATR | Comparison of natural plastic Sochacki lens antennas, part 1
-- assessment of discretised prototype lenses -- Derek Gray (XJTLU), Nasiha Nikolic (CSIRO) AP2017-153 |
There are several different approaches to design spherical lenses that have higher surface permittivity than free space,... [more] | AP2017-153 pp.13-18 |
| AP | 2017-08-25 10:20 |
Hokkaido | National Institute of Technology, Hakodate College | Far-Field Estimation of Antenna above the Earth by Source Reconstruction from Hemispherical Near-Field Yoshiki Sugimoto, Hiroyuki Arai (YNU) AP2017-81 |
Antenna measurements are done in an anechoic chamber, its characteristics regarded as equal to the characteristics in fr... [more] | AP2017-81 pp.71-74 |
| AP, SAT, SANE (Joint) |
2016-07-21 14:50 |
Hokkaido | Otaru port marina | Characteristic Mode Analysis of Hemispherical Shell for Helmet Antenna Design Nobuhito Nomura, Naobumi Michishita, Hisashi Morishita (National Defence Academy) AP2016-51 |
Helmet antennas have been considered for integrating into the helmet for disaster prevention. To achieve the helmet ante... [more] | AP2016-51 pp.83-86 |
| WPT | 2016-03-07 16:10 |
Kyoto | Kyoto Univ. Uji Campus | Experimental Study of the Beam Convergence Method Using METLAB Facilities Takashi Uno, Kuniaki Shibata, Kenji Saegusa, Takano Tadashi (Nihon Univ.), Takaki Ishikawa, Naoki Shinohara (Kyoto Univ.) WPT2015-83 |
Wireless power transmission in a relatively close distance have been examined. In this case, we have to generate and pro... [more] | WPT2015-83 pp.39-44 |
| AP, RCS, WPT, SAT (Joint) |
2015-11-04 14:05 |
Okinawa | Okinawa Prefectural Museum & Art Museum | Study of broadband reflect-array antennas surface structure Shouta Yoshimoto, Yuka Fujii, Shigeru Makino, Tetsuo Hirota, Keisuke Noguchi, Kenji Itoh (KIT), Takeshi Shiode, Michio Takikawa (Mitsubishi Electric Corp.) AP2015-118 |
In this paper, it will examine the behavior of the wave front when it chose any mirror surface constitution. When the pr... [more] | AP2015-118 pp.47-51 |
| EMT, IEE-EMT | 2015-10-30 13:50 |
Miyazaki | Holiday Inn ANA Resort Miyazaki | A Study on Radiation Characteristics for Electrically Small Spherical Conducting Shell Antennas Keisuke Fujita, Hiroshi Shirai (Chuo Univ.) EMT2015-74 |
A thin and small spherical shell shaped antenna as a model of current distribution caused by the skin effect will be ana... [more] | EMT2015-74 pp.161-166 |
| WPT | 2015-06-12 18:40 |
Tokyo | Univ. of Tokyo | Analysis of Electromagnetic Wave Beam for Wireless Power Transmission Takashi Uno, Kuniaki Shibata, Kenji Saegusa, Tadashi Takano (Nihon Univ.) WPT2015-35 |
Wireless power transmission between relatively close distance have been examined. In this case, we have to generate and ... [more] | WPT2015-35 pp.81-85 |
| EE, WPT (Joint) |
2014-11-19 14:20 |
Kyoto | Doshisha University | Beam Design Method of Phased Array Antenna with Synthesized Spherical Wave Takayuki Matsumuro, Yohei Ishikawa, Takaki Ishikawa, Naoki Shinohara (Kyoto Univ.) WPT2014-62 |
Beam forming of the phased array antenna is one of the most important technology in microwave power transmission. Especi... [more] | WPT2014-62 pp.67-70 |
| AP, SAT (Joint) |
2014-07-25 16:00 |
Gifu | Gero Citizen Hall | Antenna de-embedding and antenna-channel recombination of MIMO system: feasibility investigation in spherical wave domain Yang Miao, Jun-ichi Takada (Tokyo Inst. of Tech.), Katsuyuki Haneda (Aalto Univ.), Minseok Kim (Niigata Univ.) AP2014-71 SAT2014-24 |
Antenna de-embedding is to extract antennas from both ends of a MIMO system and to study the propagation channel only. A... [more] | AP2014-71 SAT2014-24 pp.131-134(AP), pp.69-72(SAT) |
| AP, ITE-BCT | 2013-02-07 13:00 |
Tokyo | AIST Tokyo Waterfront | Estimating Method of Wave Source Position around a spherical conductor by using Dyadic Green's Function Yuki Morita, Nozomi Haga, Kuniyuki Motojima (Gunma Univ.) AP2012-160 |
It is important for suppressing unnecessary emission from electric devices to estimate the position of electromagneti... [more] |
AP2012-160 pp.35-40 |
| AP, WPT (Joint) |
2012-08-28 10:30 |
Niigata | Niigata Univ. | Design Method of a Triple Spherical Reflector Antenna Shuji Urasaki (HIT) AP2012-75 |
Design method of a triple spherical reflector antenna having three concentric spherical reflectors and two additional re... [more] | AP2012-75 pp.39-44 |
| MW | 2010-03-04 17:10 |
Kyoto | Ryukoku Univ. | Double-directional channel with spherical harmonics Kenji Nakai, Jun-ichi Takada, Minseok Kim, Dashti Marzieh (Tokyo Inst. of Tech.), Tommi Laitinen (Helsinki Univ. of Tech.) MW2009-198 |
There is an approach that extracts or de-embeds the transmitting and receiving antennas from the multipath radio channel... [more] | MW2009-198 pp.113-117 |
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