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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 54  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
US 2022-02-24
15:35
Online Online Non-destructive inspection of shotcrete specimens by noncontact acoustic inspection method
Tsuneyoshi Sugimoto, Kazuko Sugimoto (Toin Univ.), Noriyuki Utagawa, Chitose Kuroda (SatoKogyo) US2021-73
Shotcrete is widely used for supporting underground cavities because of its excellent workability. However, in a high pl... [more] US2021-73
pp.21-26
US 2020-02-28
13:10
Tokyo   Defect detection for shotcrete in ceiling of underground cavity by noncontact acoustic inspection method -- Alternative method of hammering inspection by acoustic irradiation induced vibration from a long distance --
Tsuneyoshi Sugimoto, Kazuko Sugimoto (Toin Univ.), Noriyuki Utagawa, Chitose Kuroda (SatoKogyo), Hiroshi Morioka, Shigeru Tsuruta (TEPCO), Takayuki Nakagawa, Ataru Honda (TEPSCO), Naoto Sugisaki, Takao Yamazaki (tousetu) US2019-100
Shotcrete is widely used for supporting underground cavities because of its excellent workability. However, in a high pl... [more] US2019-100
pp.7-12
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
AP, WPT
(Joint)
2020-01-24
15:45
Kagawa Sunport Hall Takamatsu Analyses of a meander dipole on a human phantom
Sota Tsuboi, Keisuke Noguchi (KIT) AP2019-177
In order to design high-gain small antennas mounted on human skin, we analyze a meander dipole antenna (MDA) on a metal ... [more] AP2019-177
pp.147-152
EST, MW, EMCJ, IEE-EMC [detail] 2018-10-19
11:35
Aomori Hachinohe Chamber of Commerce and Industry(Hachinohe city, Aomori) A Study of Loss Reduction in 60 GHz Band Silicon CMOS On-Chip Dipole Antenna using TSV
Takuichi Hirano (Tokyo City Univ.) EMCJ2018-51 MW2018-87 EST2018-73
60 GHz CMOS on-chip antenna is low radiation efficiency due to large loss of silicon (Si) substrate. It is reported that... [more] EMCJ2018-51 MW2018-87 EST2018-73
pp.105-109
AP 2018-08-23
14:10
Saitama Nippon Inst. of Tech. Study on Decoupling for three closely placed monopole antenna elements
Hiroshi Sato, Kenshi Horihata (Panasonic), Nobuyuki Shiraki, Naoki Honma (Iwate University), Masaharu Takahashi (Chiba University), Yoshio Koyanagi (Panasonic) AP2018-73
In recent years, in wireless information terminals, MIMO technology using multiple antennas is used to stably communicat... [more] AP2018-73
pp.35-40
WPT
(2nd)
2017-12-09
- 2017-12-11
Overseas National University of Singapore(AWPT2017) Enhanced Electromagnetic Energy Harvesting with Subwavelength Chiral Structures
Dong Zhenya, Yang Fengyuan, John Ho (NUS)
Collecting energy from electromagnetic radiation in dynamic environments is challenging because most harvesting structur... [more]
ED 2017-10-27
11:40
Miyagi   Study of Sb-Cs Photocathode for ultrafast electron pulse
Ryo Yoshitake, Hayato Takahashi, Yoichiro Neo, Hidenori Mimura (Shizuoka Univ) ED2017-48
In recent years, several ways for THz wave generation mechanism have been proposed and developed aggressively. The THz w... [more] ED2017-48
pp.51-53
RCS, AP
(Joint)
2016-11-24
11:10
Kyoto Kyoto International Community House Radiation Characteristics of Embroidered Wideband Wearable Antennas Using Different Sewing Patterns
Takayuki Yoshikawa, Tadahiko Maeda (Ritsumeikan Univ.) AP2016-109
When textile antennas are embedded into the clothes, the sewing pattern of radiating elements affects the plasticity, fl... [more] AP2016-109
pp.11-16
CQ 2016-08-29
16:25
Ibaraki Tsukubasan [Special Invited Talk] Antenna miniaturization and its Impact on the communication quality
Hiroyuki Arai (Yokohama Natl. Univ.) CQ2016-61
Antennas are basic elements in wireless communication systems, transmitting and receiving radio frequency signal over th... [more] CQ2016-61
p.75
AP
(2nd)
2015-12-18
09:15
Okinawa Miyako Island Marine Terminal Comparison between Wheeler, reflection methods and related techniques for evaluating radiation efficiency of small antennas
Toshiki Konno, Nozomu Ishii (Niigata Univ.)
In this report, we compare various formulas to estimate the radiation efficiency based upon Wheeler and reflection metho... [more]
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
EMCJ, IEE-EMC, MW, EST [detail] 2015-10-23
15:00
Miyagi Sakura Hall, Katahira Campus, Tohoku Univ. Design of Low Loss 60 GHz CMOS On-Chip Dipole Antenna By Helium-3 Ion Irradiation
Takuichi Hirano, Ning Li, Kenichi Okada, Akira Matsuzawa, Jiro Hirokawa, Makoto Ando (Tokyo Tech.), Tsuyoshi Inoue, Hitoshi Sakane (SHIEI) EMCJ2015-79 MW2015-118 EST2015-89
60 GHz CMOS on-chip antenna is low radiation efficiency due to large loss of silicon (Si) substrate. In this paper, a 60... [more] EMCJ2015-79 MW2015-118 EST2015-89
pp.123-127
WPT, MW 2015-04-17
11:20
Tokyo Kikai-Shinko-Kaikan Bldg. Study on Matching Condition of an Infinite Dipole Array Antenna with Reflector for MPT
Yu Tsukamoto, Takayuki Matsumuro, Hiroshi Tonomura, Yohei Ishikawa, Naoki Shinohara (Kyoto Univ.) WPT2015-12 MW2015-12
Non-leak energy technology is essential for high power system in microwave power transmission.Non-leak energy system req... [more] WPT2015-12 MW2015-12
pp.61-64
EST, OPE, LQE, EMT, PN, MWP, IEE-EMT [detail] 2015-01-29
11:20
Osaka   [Invited Talk] Narrowband high-speed thermal emitters based on quantum wells and photonic crystals
Takuya Inoue, Menaka De Zoysa, Takashi Asano, Susumu Noda (Kyoto Univ.) PN2014-32 OPE2014-157 LQE2014-144 EST2014-86 MWP2014-54
Thermal emitters are used over a wide variety of frequencies in various applications. However, they suffer from low powe... [more] PN2014-32 OPE2014-157 LQE2014-144 EST2014-86 MWP2014-54
pp.29-34
AP, RCS
(Joint)
2014-11-12
10:10
Yamagata Yamagata University, Yonezawa Campus Investigation of Antenna Radiation-efficiency with Surface Roughness of the Antenna Conductor
Ryosuke Kitazumi, Toru Uno, Takuji Arima (TUAT) AP2014-130
It is known that antenna radiation efficiency is decreased in some condition even the antenna is made by good conductor.... [more] AP2014-130
pp.13-16
AP, SANE
(Joint)
2014-08-29
16:05
Niigata Niigata University Satellite campus Rapid mesurement of Wheeler efficiency using hybrid coupler and phase shifter
Kouhei Watanabe, Nozomu Ishii (Niigata Univ.) AP2014-88
Wheeler method is known as a simple method of measuring radiation efficiency for small antennas. To reduce uncertainty o... [more] AP2014-88
pp.91-94
AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre [Poster Presentation] A study on Q-factor calculated from impedance characteristic of small antennas
Harutaka Kyomura, Keisuke Noguchi, Shigeru Makino, Tetsuo Hirota, Kenji Ito (KIT)
Small antennas of active RFID tags have low radiation efficiency because of its smaller size compared with wave
length ... [more]

AP
(2nd)
2014-05-15
- 2014-05-16
Ishikawa The Kanazawa Theatre Radiation Efficiency Enhancement of Electrically Small and Low-Profile Antenna Using Capacitive Feed Structure
Takeshi Fukusako, Hiroyuki Maema (Kumamoto Univ.)
Effects of stacking on radiation efficiency are studied for an electrically small and low-profile meandered line antenna... [more]
AP
(2nd)
2014-01-08
16:10
Overseas Le Quy Don Technical University (Hanoi, Vietnam) Dielectric Loading Effect of Open-end Spiral Antenna for Wireless Power Transfer
Kanako Komatsu, Hiroyuki Yamada, Hiroshi Hirayama, Nobuyoshi Kikuma, Kunio Sakakibara (NIT)
(To be available after the conference date) [more]
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