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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 53  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
AP, MW
(Joint)
2022-09-15
12:25
Ehime The Museum of Art, EHIME
(Primary: On-site, Secondary: Online)
Macromodeling and Verification of Quad-Parallel Bipolar Transistors in the 300 GHz Band
Minami Nasu (Tokyo University of science), Shinsuke Hara, Akifumi Kasamatsu (NICT), Yohtaro Umeda, Kyoya Takano (Tokyo University of science) MW2022-77
The objective of this study is to create a simple four-parallel bipolar transistor model for the 300 GHz band, and we pr... [more] MW2022-77
pp.48-51
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] 2022-07-19
16:35
Hokkaido Asahikawa Civic Culture Hall
(Primary: On-site, Secondary: Online)
120-GHz-band transmission by contacting dielectric waveguides
Akihiko Hirata, Masaki Ushio (CIT), Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu (NICT) EMT2022-30 MW2022-54 OPE2022-33 EST2022-31 MWPTHz2022-28
Currently, sheet LAN, which enables LAN connection simply by placing a terminal on a dielectric sheet that transmits ter... [more] EMT2022-30 MW2022-54 OPE2022-33 EST2022-31 MWPTHz2022-28
pp.109-112
MW 2022-03-04
10:30
Online Online Electromagnetic-wave-absorber design based on terahertz-band measurement results of dielectrics
Sangyeop Lee (TokyoTech), Masao Fujita, Masayuki Toyoda (Maxell Ltd.), Kyoya Takano (TUS), Shinsuke Hara, Issei Watanabe, Akifumi Kasamatsu (NICT), Hiroyuki Ito (TokyoTech) MW2021-132
 [more] MW2021-132
pp.117-121
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
ED, THz 2021-12-21
10:20
Miyagi
(Primary: On-site, Secondary: Online)
Device Performances and Delay Time Analysis of GaInSb-Channel HEMTs Scaled to Epitaxial Structures
Yuuto Isomae, Naoyuki Kishimoto, Takuya Hayashi, Munemasa Kunisawa (TUS), Issei Watanabe, Yoshimi Yamashita, Ryuto Machida, Shinsuke Hara, Akifumi Kasamatsu (NICT), Akira Endoh, Hiroki Fujishiro (TUS) ED2021-57
We fabricated three-types of Al0.40In0.60Sb/Ga0.22In0.78Sb-HEMTs using epitaxial heterostructures in which the channel l... [more] ED2021-57
pp.44-47
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
OPE, MW, IEE-EMT, MWP, EST, EMT, THz [detail] 2021-07-15
16:00
Online Online Dependence of Alignment on the transmission control of 120-GHz-band SRR bandstop filter by contacting Lattice Pattern
Akihiko Hirata (CIT), Issei Wanatabe, Norihiko Sekine, Akifumi Kasamatsu (NICT) EMT2021-16 MW2021-21 OPE2021-10 EST2021-17 MWP2021-18
Terahertz (THz)-band close-proximity wireless link can achieve instantaneous transfer of large amounts of data, however,... [more] EMT2021-16 MW2021-21 OPE2021-10 EST2021-17 MWP2021-18
pp.50-53
MWP 2021-05-26
15:10
Online Online Complex dielectric constant measurement of glass at 200-500 GHz by THz-TDS and VNA
Akihiko Hirata, Koji Suizu (CIT), Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu (NICT) MWP2021-3
(To be available after the conference date) [more] MWP2021-3
pp.10-13
EMT, MWP, PN, IEE-EMT [detail] 2021-01-21
15:45
Online Online [Invited Talk] Kerr frequency comb generation in silicon nitride microring resonators and characterization of their mode-spacing frequencies
Kentaro Furusawa, Norihiko Sekine, Akifumi Kasamatsu (NICT) PN2020-38 EMT2020-56 MWP2020-39
Kerr frequency combs in high-Q microring resonators have attracted a lot of attention due to their capabilities of gener... [more] PN2020-38 EMT2020-56 MWP2020-39
pp.46-49
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]
MWP 2020-10-21
14:20
Online Online [Invited Talk] Rigde-type PPLN device toward high-efficient THz wave generation
Junichi Hamazaki, Yoh Ogawa (NICT), Tadashi Kishimoto (OKI), Norihiko Sekine1, Akifumi Kasamatsu, Iwao Hosako (NICT) MWP2020-27
 [more] MWP2020-27
pp.7-10
MWP 2020-05-28
15:55
Online Online Transmission control of 120-GHz-band SRR bandstop filter
Akihiko Hirata, Koichiro Itakura (CIT), Takashi Tomura, Jiro Hirokawa (TITECH), Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu (NICT) MWP2020-5
 [more] MWP2020-5
pp.23-26
ED, MW 2020-01-31
16:35
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Research and development of compound semiconductor electron devices and high-frequency measurement technologies for millimeter- and submillimeter-wave wireless communications
Issei Watanabe, Yoshimi Yamashita, Akifumi Kasamatsu (NICT) ED2019-105 MW2019-139
Compound semiconductor electron devices such as GaN-based high electron mobility transistors (HEMTs) have been expected ... [more] ED2019-105 MW2019-139
pp.59-64
OFT 2020-01-16
16:40
Aichi NINS Okazaki Conference Center Dispersion measurement of microcavities by using frequency reference signal transfer via optical fibre networks
Kentaro Furusawa, Isao Morohashi, Shigeo Nagano, Motohiro Kumagai, Norihiko Sekine, Akifumi Kasamatsu (NICT) OFT2019-49
High Q microcavities constitute promising platforms for generating optical Kerr combs in small footprints. To quantify t... [more] OFT2019-49
pp.15-19
SRW 2020-01-14
15:40
Kanagawa TBD [Invited Talk] 300-GHz-Band Wireless Communication System with CMOS Integrated Circuits
Yohei Morishita, Toshihiro Teraoka, Takenori Sakamoto, Kazuaki Takahashi (Panasonic), Akifumi Kasamatsu (NICT), Minoru Fujishima (Hiroshima University) SRW2019-57
Terahertz-bands enables ultra-high-speed transmission of several tens of Gbps or more because of its wide bandwidth, and... [more] SRW2019-57
pp.29-34
ED, THz [detail] 2019-12-23
16:45
Miyagi   GaInSb n-Channel HEMTs Using Strained-Al0.40In0.60Sb/Al0.25In0.75Sb Stepped Buffer
Koki Osawa, Takuya Iwaki, Yuki Endoh, Mizuho Hiraoka, Naoyuki Kishimoto, Takuya Hayashi (TUS), Issei Watanabe (NICT/TUS), Yoshimi Yamashita, Shinsuke Hara, Takahiro Gotow, Akifumi Kasamatsu (NICT), Akira Endoh, Hiroki Fujishiro (TUS) ED2019-83
We succeeded in fabricating GaInSb n-channel HEMTs for the first time in the world and measured their characteristics. W... [more] ED2019-83
pp.29-32
MWP 2019-11-27
13:55
Tokyo Kikai-Shinko-Kaikan Bldg. Measurement of 4 x 4 planar slot array antenna near-field pattern
Akihiko Hirata (CIT), Yusuke Tanaka, Shintaro Hisatake (Gifu Univ.), Jiro Hirokawa (TITEC), Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu (NICT) MWP2019-43
 [more] MWP2019-43
pp.5-8
PN, EMT, OPE, EST, MWP, LQE, IEE-EMT [detail] 2019-01-18
12:05
Osaka Osaka University Nakanoshima Center Geneation of Coherent Terahertz Carriers in the 3 THz Range Using Optical-Comb-Based THz Source for Terahertz Communications
Isao Morohashi, Yoshihisa Irimajiri, Atsushi Kanno, Akira Kawakami, Naokatsu Yamamoto, Norihiko Sekine, Akifumi Kasamatsu, Iwao Hosako (NICT) PN2018-60 EMT2018-94 OPE2018-169 LQE2018-179 EST2018-107 MWP2018-78
We proposed a terahertz (THz) communication system operating in the 3 THz range using an optical-comb-based THz source a... [more] PN2018-60 EMT2018-94 OPE2018-169 LQE2018-179 EST2018-107 MWP2018-78
pp.167-170
ED, THz 2018-12-18
09:00
Miyagi RIEC, Tohoku Univ. [Invited Talk] High-Speed Performance of InP-, Sb- and GaN-based HEMTs
Akira Endoh, Issei Watanabe, Yoshimi Yamashita, Akifumi Kasamatsu (NICT), Hiroki Fujishiro (Tokyo Univ. of Science), Takashi Mimura (NICT) ED2018-62
We have fabricated nanometer-scale InP-, Sb- and GaN-based HEMTs by using electron beam lithography and measured their c... [more] ED2018-62
pp.35-38
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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