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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 64  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EMCJ 2023-12-08
13:35
Shizuoka Shizuoka University (Hamamatsu) NSA Measurements using a Pair of Biconical Antennas
Katsumi Fujii, Chakarothai Jerdvisanop (NICT) EMCJ2023-81
For the NSA method, which is one of the methods to validate EMI test sites used in radiated disturbance measurements, it... [more] EMCJ2023-81
pp.1-6
MWPTHz 2023-11-01
15:30
Online Online (Zoom) [Invited Talk] Establishing experimental facilities for the Beyond 5G at NICT -- B5G electromagnetic wave anechoic chamber --
Katsumi Fujii (NICT) MWPTHz2023-61
In order to study on the next-generation mobile communications networks (Beyond 5G/6G), NICT has established an electrom... [more] MWPTHz2023-61
pp.13-16
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
AP, SANE, SAT
(Joint)
2021-07-30
14:05
Online Online [Invited Lecture] Propagation study of 300 GHz band front hall wireless link for Beyond 5G
AKihiko Hirata (CIT), Katsumi Fujii, Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu (NICT) AP2021-44
Recently, research and development of Beyond 5G mobile network systems has been activated. In Beyond 5G mobile network s... [more] AP2021-44
pp.115-119
EMCJ, MICT
(Joint)
2021-03-05
12:55
Online Online Monitoring of EMF Exposure from Mobile Phone Base Stations in Urban and Suburban Areas
Teruo Onishi, Masao Taki, Sadaaki Shiota, Kaoru Gotoh, Kanako Wake, Katsumi Fujii, Soichi Watanabe (NICT) EMCJ2020-76
With the practical application of 5th generation mobile communication systems (5G), Internet of Things (IoT), and wirele... [more] EMCJ2020-76
pp.22-25
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
AP
(2nd)
2020-12-10
13:20
Okinawa Nobumoto Ohama Memorial Hall
(Primary: On-site, Secondary: Online)
300 GHz Antennas Pattern Measurement over the entire circumference -- To Extend the Applicable Frequency Range of Recommendation ITU-R F.699 for 6G --
Keizo Inagaki, Hirokazu Sawada, Katsumi Fujii, Hiroyo Ogawa, Atsushi Kanno, Fumihide Kojima, Shingo Saito, Norihiko Sekine, Akifumi Kasamatsu, Iwao Hosako (NICT)
 [more]
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
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]
WPT, PEM
(Joint)
2018-11-19
11:05
Tokyo Kikai-Shinko-Kaikan Bldg. Investigation of Calibration Method for Optoelectric Electric Field Probe by Standard Electric Field Method Using Shortened Monopole Antenna
Jerdvisanop Chakarothai, Katsumi Fujii, Kanako Wake, Ifong Wu, Soichi Watanabe (NICT)
 [more]
RCC, MICT 2018-05-24
13:00
Tokyo Tokyo Big Sight [Poster Presentation] Evaluation of Contact Current in Intermediate Frequency Using Measured Electric Field -- Experimental Assessment near MF Broadcasting Station --
Jerdvisanop Chakarothai (NICT), Keisuke Arai (TUAT), Kanako Wake, Katsumi Fujii, Soichi Watanabe (NICT), Takuji Arima, Toru Uno (TUAT) RCC2018-11 MICT2018-11
Recently, there has been rapid development of wireless devices using intermediate frequency (IF; 300 Hz – 10 MHz) band. ... [more] RCC2018-11 MICT2018-11
pp.51-55
MWP 2018-05-18
15:45
Tokyo Kikai-Shinko-Kaikan Bldg. Development of Waveguide Calorimeter for 200 GHz Band Power Standard
Yuya Tojima, Moto Kinoshita, Hitoshi Iida (AIST), Katsumi Fujii (NICT) MWP2018-3
In recent years, research in communication application using a frequency range over 100 GHz is rapidly grown. To take th... [more] MWP2018-3
pp.15-18
AP 2018-02-16
10:55
Tokyo Kozo Keikaku Engineering, Inc. [Invited Lecture] Penetration Loss Measurement at 300 GHz
Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima, Keizo Inagaki, Hiroyo Ogawa, Katsumi Fujii, Akifumi Kasamatsu, Iwao Hosako (NICT) AP2017-181
 [more] AP2017-181
pp.31-35
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