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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2019-12-12 13:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Consideration on a Reception of Electromagnetic Wave Signals at the Sea Level in the Shallow Sea Area Nozomu Ishii (Niigata Univ.), Masaharu Takahashi, Ryosuke Kato (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC)  AP2019-143 |
In order to estimate the position of a diver in a submarine search at the time of a flood accident in shallow water, we ... [more] | AP2019-143 pp.7-12 |
| MW, AP (Joint) |
2019-09-19 13:35 |
Kanagawa | JAXA (Sagamihara) | Measurement of Phase Distribution between Small Dipole Antennas Immersed in Simulated Sea Water Using Pseudo Scale Model Nozomu Ishii (Niigata Univ.), Masaharu Takahashi, Ryosuke Kato (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-72 |
The authors deal with the problem of position estimation in the sea using electromagnetic waves as one of the applicatio... [more] | AP2019-72 pp.13-18 |
| AP | 2019-08-22 14:35 |
Hokkaido | Hokkai-Gakuen Univ. | Design and Evaluation of Antennas in Seawater Qiang Chen, Hiroyasu Sato (Tohoku Univ.), Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-60 |
[more] | AP2019-60 pp.69-71 |
| AP | 2019-08-22 15:00 |
Hokkaido | Hokkai-Gakuen Univ. | 3D Pattern Measurement of an Underwater Dipole Antenna Using Pseudo Scale Model Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC) AP2019-61 |
Electromagnetic field distribution in the sea should be essentially measured when developing a system that uses electrom... [more] | AP2019-61 pp.73-78 |
| AP | 2019-08-22 15:25 |
Hokkaido | Hokkai-Gakuen Univ. | Fundamental study of electromagnetic wave propagation in the sea at frozen Saroma lake Ryosuke Kato, Masaharu Takahashi (Chiba Univ.), Hiroshi Yoshida (JAMSTEC), Nozomu Ishii (Niigata Univ.), Chen Qiang (Tohoku Univ.) AP2019-62 |
As a basic study of an undersea positioning system using electromagnetic waves, we investigated an attenuation of electr... [more] | AP2019-62 pp.79-83 |
| EMCJ, EMD, WPT, PEM (Joint) [detail] |
2019-07-19 11:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Calibration of Optical Electric-Field Probe in Liquid Phantom Using Sheathed Dipole Antenna Jerdvisanop Chakarothai (NICT), Nozomu Ishii (Niigata Univ.), Kanako Wake, Katsumi Fujii, Soichi Watanabe (NICT) |
In order to check compliance for MHz-band wireless power transfer systems, we have proposed a calibration method for ele... [more] | |
| AP, SANE, SAT (Joint) |
2019-07-19 09:00 |
Miyagi | Tohoku Univ. | Proposal of a Measurement Method for Complex Permittivity of a Lossy Liquid Using a Waveguide System Nozomu Ishii, Yuya Aoki (Niigata Univ.), Yuto Shimizu, Tomoaki Nagaoka, Kanako Wake, Soichi Watanabe (NICT) AP2019-38 |
In a standard method for evaluating the specific absorption rate (SAR) of a mobile device, head phantom is formed by the... [more] | AP2019-38 pp.89-94 |
| AP (2nd) |
2019-06-25 14:35 |
Hokkaido | Wakkanai City Japan-Russia Friendship Hall | Low frequency electromagnetic wave propagation between ice-surface and sea-water measured in Saroma Lake. Hiroshi Yoshida, Ryo sato (JAMSTEC), Masaharu Takahashi (Chiba Univ.), Nozomu Ishii (Niigata Univ.), Qiang Chen (Tohoku Univ.), Ryosuke Kato (Chiba Univ.) |
[more] | |
| AP (2nd) |
2019-06-25 15:00 |
Hokkaido | Wakkanai City Japan-Russia Friendship Hall | Effect of Unbalanced Current on Transmission Measurements between Two Dipole Antennas in the Saline Solution Nozomu Ishii (Niigata Univ.), Yuto Shimizu, Jerdvisanop Chakarothai, Kanako Wake, Soichi Watanabe (NICT) |
[more] | |
| AP (2nd) |
2019-03-14 11:35 |
Fukushima | Yunoya (Iizaka Onsen, Fukushima) | Some considerations on transmission measurements between two dipole antennas in the tissue-equivalent salt water in kHz and MHz bands Nozomu Ishii, Daiki Obara (Niigata Univ.), Jerdvisanop Chakarothai, Kanako Wake, Soichi Watanabe (NICT) |
[more] | |
| EMCJ, IEE-EMC | 2018-12-14 15:35 |
Aichi | A Study on Reducing Measurement Time for Assessment of Cellular Phones using Fast SAR Measurement Procedure Yuto Shimizu, Tomoaki Nagaoka (NICT), Nozomu Ishii (NICT/Niigata Univ.), Soichi Watanabe (NICT) EMCJ2018-96 |
A specific absorption rate (SAR) is used for an assessment of a human exposure from wireless communication devices. Curr... [more] | EMCJ2018-96 pp.75-80 |
|
| WPT (2nd) |
2018-11-02 - 2018-11-04 |
Miyagi | Tohoku University | 3D measurement of transmission between small dipole antennas using pseudo scale model for underwater positioning system in kHz band Nozomu Ishii, Yudai Ishizuka, Shota Meguro (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Hiroshi Yoshida (JAMSTEC), Qiang Chen (Tohoku Univ.) |
To construct the underwater positioning system operated in the kHz band, we measure the transmission coefficient between... [more] | |
| EMCJ | 2018-07-27 10:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | On Fast SAR assessment for some mobile communication devices Yuto Shimizu, Tomoaki Nagaoka (NICT), Nozomu Ishii (NICT/Niigata Univ.), Soichi Watanabe (NICT) EMCJ2018-24 |
A specific absorption rate (SAR) is used for an assessment of a human exposure from wireless communication devices. Curr... [more] | EMCJ2018-24 pp.13-18 |
| EMCJ, IEE-SPC, EMD, PEM (Joint) [detail] |
2018-07-26 15:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | On Determining the Fitting Range to Calibrate the SAR Probe Using the Waveguide System Nozomu Ishii (NICT/Niigata Univ.), Yuto Shimizu, Tomoaki Nagaoka, Soichi Watanabe (NICT) EMCJ2018-19 EMD2018-17 |
In the measurement of the specific absorption rate (SAR) of the wireless mobile device, the electric field probe is scan... [more] | EMCJ2018-19 EMD2018-17 pp.19-24 |
| AP, SANE, SAT (Joint) |
2018-07-20 11:10 |
Hokkaido | Hokkaido Univ. | Modified Calibration Technique of Distance Property for Electric Field Intensity Radiated by Small Dipole Antenna Operated in Solution Nozomu Ishii (Niigata Univ.), Chakarothai Jerdvisanop, Kanako Wake, Lira Hamada, Soichi Watanabe (NICT) AP2018-62 SANE2018-26 SAT2018-21 |
The authors have determined the transmit antenna factor of a reference dipole antenna as a function of the distance by t... [more] | AP2018-62 SANE2018-26 SAT2018-21 pp.119-124(AP), pp.25-30(SANE), pp.61-66(SAT) |
| AP | 2018-04-20 09:55 |
Tokyo | Hachijomachi-Shokokai | A Study of Antennas for Wireless Communication and Propagation Model in Seawater Naomichi Fujii, Hiroyasu Sato, Qiang Chen (Tohoku Univ.), Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Hiroshi Yoshida, Ryotaro Suga (JAMSTEC) AP2018-5 |
In recent years, wireless communications in seawater by using electromagnetic waves has been studied because a robust co... [more] | AP2018-5 pp.23-28 |
| WPT, EMCJ (Joint) |
2017-11-21 14:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Numerical Study of Transmission Efficiency between Antennas in Seawater Naomichi Fujii, Hiroyasu Sato, Qiang Chen (Tohoku Univ.), Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Hiroshi Yoshida, Ryotaro Suga (JAMSTEC) WPT2017-50 |
In recent years, wireless communications in seawater by using electromagnetic waves has been studied because a robust co... [more] | WPT2017-50 pp.33-37 |
| AP (2nd) |
2017-05-26 10:40 |
Okinawa | Yonaguni Island, Kubura multipurpose meeting place (AMT) | 3D measurement of power transmission coefficient between small dipole antennas in saline solution in MHz band Nozomu Ishii (Niigata Univ.), Yu-Wei Guo (Niigata Univ./Taiwan Univ. Sci. Tech.), Chakarothai Jerdvisanop, Kanako Wake, Lira Hamada, Soichi Watanabe (NICT) |
To calibrate the probe for measuring SAR (specific absorption rate) values of the wireless devices operated in the MHz b... [more] | |
| AP | 2017-03-16 13:25 |
Iwate | Iwate Univ. | An Extension of Dip Suppression Technique in Wheeler Radiation Efficiency Using Rational Fraction Fitting of Reflection Coefficient for Small Antennas Nozomu Ishii (Niigata Univ.) AP2016-183 |
A technique for eliminating discontinuities due to cavity resonance in radiation efficiency estimated by Wheeler cap met... [more] | AP2016-183 pp.31-36 |
| AP | 2016-12-08 12:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Pseudo scale model for electromagnetic fields produced by infinitesimal electric and magnetic dipoles in seawater Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiang Chen (Tohoku Univ.) AP2016-125 |
In this report, we discuss the pseudo-scale rule which is the basic principle for laboratory experiments simulating elec... [more] | AP2016-125 pp.11-16 |
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