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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMT, IEE-EMT | 2023-11-09 14:20 |
Yamaguchi | Kaikyo Messe Shimonoseki | Stability Analysis of Frequency-Dependent FDTD Method Using Fast Inverse Laplace Transform and Prony Method Jerdvisanop Chakarothai (NICT) |
[more] | |
| EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] | 2023-07-21 15:40 |
Hokkaido | Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
Analysis of Surface Impedance Using the Fast Inverse Laplace Transform and Prony's Method Kazuma Takeya (Hosei Univ.), Jerdvisanop Chakarothai (NICT), Jun Shibayama (Hosei Univ.), Yukihisa Suzuki (Tokyo Metropolitan Univ.), Katsumi Fujii (NICT)  EMT2023-48 MW2023-66 OPE2023-48 EST2023-48 MWPTHz2023-44 |
We often employ the surface impedance method in analyzing the various electromagnetic (EM) problems of high-loss media. ... [more] | EMT2023-48 MW2023-66 OPE2023-48 EST2023-48 MWPTHz2023-44 pp.196-201 |
| AP | 2023-05-12 10:25 |
Okinawa | Okinawa Gender Equality Center (Primary: On-site, Secondary: Online) |
Investigation of terahertz band indoor propagation loss model Hirokazu Sawada, Kazuki Tsushima, Riku Yoshino, Keizo Inagaki, Atsushi Kanno, Katsumi Fujii, Jerdvisanop Chakarothai, Norihiko Sekine, Akifumi Kasamatsu, Hiroyo Ogawa, Takeshi Matsumura (NICT) AP2023-18 |
Sub-terahertz and terahertz waves are being considered for use in next-generation wireless communications to enable seve... [more] | AP2023-18 pp.54-58 |
| AP | 2022-10-19 12:20 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Scattering Performance of Endfire Reflectorarray With Linear Monopole Elements Ryogo Aoki, Keisuke Konno, Qiang Chen (Tohoku Univ.), Jerdvisanop Chakarothai, Katsumi Fujii (NICT), Yasutaka Murakami (UEC) AP2022-121 |
[more] | AP2022-121 pp.113-115 |
| RCC, WBS, SAT, MICT | 2022-05-25 14:55 |
Online | Online | Design of electromagnetic scattering wall for improvement of wireless communications quality at 28 GHz Yasutaka Murakami (UEC), Jerdvisanop Chakarothai, Lira Hamada, Katsumi Fujii (NICT) WBS2022-5 RCC2022-5 SAT2022-5 MICT2022-5 |
5G wireless communications use electromagnetic (EM) waves in 28 GHz band. In this frequency band, high-directivity (gain... [more] | WBS2022-5 RCC2022-5 SAT2022-5 MICT2022-5 pp.18-21 |
| RCS, SR, SRW (Joint) |
2022-03-03 09:55 |
Online | Online | A Consideration of Indoor Propagation Models in the 232-330 GHz Band Hirokazu Sawada, Takeshi Matsumura, Keizo Inagaki, Atsushi Kanno, Katsumi Fujii, Jerdvisanop Chakarothai, Norihiko Sekine, Akifumi Kasamatsu, Hiroyo Ogawa (NICT) SRW2021-72 |
[more] | SRW2021-72 pp.17-20 |
| PEM (Workshop) |
2021-11-29 - 2021-11-30 |
Hokkaido | Hokkaido Univ. (Hybrid by remote) (Primary: On-site, Secondary: Online) |
Uncertainty Evaluation of Optical Electric-Field Probe Calibration for Human Exposure Assessment at 85 kHz Yuto Shimizu (NICT), Eishi Oho (NICT/TUAT), Jerdvisanop Chakarothai, Tomoaki Nagaoka (NICT), Takuji Arima, Toru Uno (TUAT) |
The electromagnetic field in the intermediate frequency band (300 Hz–10 MHz) emitted from wireless power transfer (WPT) ... [more] | |
| EMCJ | 2021-07-01 13:05 |
Online | Online | An Investigation on Effect of Anisotropy of FR-4 Substrates to Signal Transmission Using FDTD Analysis Taiki Kitazawa (NAIST), Taiki Yamagiwa, Ren Kitahara (UEC), Jerdvisanop Chakarothai (NICT), Takashi Kasuga (NIT, Nagano College), Yuichi Hayashi (NAIST) EMCJ2021-17 |
Recently, FR-4 substrates are widely used in PCB. FR-4 substrates are composed of glass fiber and epoxy resin, and there... [more] | EMCJ2021-17 pp.1-6 |
| EMT, IEE-EMT | 2021-05-21 11:15 |
Online | Online | A Comparison on the Numerical Accuracy of the Reflection Coefficients in the Three Types of Frequency-Dependent FDTD Schemes Atsushi Sugimoto, Yukihisa Suzuki (Tokyo Metropolitan Univ.), Jun Shibayama (Hosei Univ.), Jerdvisanop Chakarothai (NICT) EMT2021-3 |
The reflection at the interface between air and gold whose dielectric properties are expressed by the Drude-Lorentz mode... [more] | EMT2021-3 pp.13-18 |
| EMCJ, IEE-EMC, IEE-SPC | 2020-12-11 09:30 |
Online | Online | EMI Measurements below 30MHz using a Loop Antenna
-- Effect on Location of Feeding Gap of Loop Antenna -- Jun Chikayama (TUAT), Jerdvisanop Chakarothai, Katsumi Fujii, Kanako Wake (NICT), Takuji Arima, Toru Uno (TUAT) EMCJ2020-56 |
Recently, equipment including wireless power transfer system using electromagnetic (EM) waves below 30 MHz have been dev... [more] | EMCJ2020-56 pp.7-12 |
| MW, EST, EMCJ, PEM, IEE-EMC [detail] | 2020-10-22 10:35 |
Online | Online | Investigation on Measurement Method of Radiated Electromagnetic Disturbance from EUTs Unable to Measure on Conventional Test Site Jerdvisanop Chakarothai, Katsumi Fujii, Yukio Yamanaka (NICT), Kimihiro Tajima (NTT-AT), Nobuyuki Mitsuzuka (TELEC) EMCJ2020-27 MW2020-41 EST2020-29 |
[more] | EMCJ2020-27 MW2020-41 EST2020-29 pp.14-19 |
| MW, EST, EMCJ, PEM, IEE-EMC [detail] | 2020-10-22 15:50 |
Online | Online | A Study on a Calibration Method for an Optical Electric-Field Probe in a Liquid Phantom Using a Sheathed Dipole Antenna at 85 kHz-Band Eishi Oho (TUAT/NICT), Yuto Shimizu, Jerdvisanop Chakarothai, Kanako Wake (NICT), Takuji Arima, Toru Uno (TUAT) |
[more] | |
| MW, EST, EMCJ, PEM, IEE-EMC [detail] | 2020-10-23 13:15 |
Online | Online | Basic Study on Signal Transmission Analysis of FR-4 Using FDTD Method Implemented Frequency Dispersion Taiki Kitazawa (NIT,Nagano College), Taiki Yamagiwa, Ren Kitahara (UEC), Jerdvisanop Chakarothai (NICT), Takashi Kasuga (NIT,Nagano College) EMCJ2020-44 MW2020-58 EST2020-46 |
Since the permittivity of FR-4 substrate has a frequency dispersion property, transmission characteristics change signif... [more] | EMCJ2020-44 MW2020-58 EST2020-46 pp.109-114 |
| EMCJ, EMD, WPT (Joint) [detail] |
2020-07-03 13:05 |
Online | Online | Circuit Modeling of Wireless Power Transfer System Considering Scattering from Perfect Conductor Nozomi Haga (Gunma Univ.), Jerdvisanop Chakarothai (NICT), Keisuke Konno (Tohoku Univ.) WPT2020-15 |
The impedance expansion method (IEM) is a circuit-modeling technique for electrically small devices based on the method ... [more] | WPT2020-15 pp.1-6 |
| EMCJ | 2020-07-02 14:15 |
Online | Online | Design of an electromagnetic scattering wall applying array antenna theory
-- Reduction of the thickness with metamaterial structures -- Yasutaka Murakami, Jerdvisanop Chakarothai, Katsumi Fujii (NICT) EMCJ2020-13 |
5G wireless communications use electromagnetic (EM) waves in 28 GHz band. High-directivity(gain) antennas are actually u... [more] | EMCJ2020-13 pp.13-17 |
| PEM (Workshop) |
2019-11-18 - 2019-11-19 |
Mie | Sinfonia Technology Hibiki Hall Ise (Ise Tourism and Culture Hall) | Calibration of an Optical Electric-Field Probe at Frequencies Below 30 MHz Using a Shortened Monopole Antenna Jerdvisanop Chakarothai, Katsumi Fujii, Kanako Wake, Soichi Watanabe (NICT) |
There is an increasing use of devices using electromagnetic fields at intermediate frequencies (300 Hz – 10 MHz) s... [more] | |
| EMCJ, IEE-SPC (Joint) |
2019-11-15 15:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Design of an electromagnetic scattering wall applying array antenna theory
-- Optimization for location of a transmitting antenna -- Yasutaka Murakami, Jerdvisanop Chakarothai, Katsumi Fujii (NICT) EMCJ2019-71 |
5G wireless communications use electromagnetic (EM) waves in 28 GHz band. High-directivity(gain) antennas are actually u... [more] | EMCJ2019-71 pp.1-6 |
| 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) |
2019-07-17 10:00 |
Miyagi | Tohoku Univ. | Design of Broadband On-Body Antenna Using Ultra-Wideband FDTD Method Jerdvisanop Chakarothai (NICT) AP2019-21 |
In this paper, broadband antennas close to a human body are designed using an improved FDTD method which can take into a... [more] | AP2019-21 pp.1-6 |
| 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] | |
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