Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
ED, MWPTHz |
2024-12-20 10:40 |
Miyagi |
RIEC, Tohoku Univ. (Primary: On-site, Secondary: Online) |
[Invited Talk]
Double δ-doped Ga0.22In0.78Sb Channel HEMTs with over 450-GHz-fmax Ryuto Machida (NICT), Rikuto Yoshida, Naoyuki Kishimoto, Ryosuke Kouno, Yuuto Isomae, Reo Ebihara, Takuya Hayashi, Tomoki Jinnai, Munemasa Kunisawa (TUS), Issei Watanabe, Yoshimi Yamashita, Shinsuke Hara, Akifumi Kasamatsu (NICT), Akira Endoh, Hiroki Fujishiro (TUS) |
(To be available after the conference date) [more] |
|
RCS, AP (Joint) |
2024-11-13 10:20 |
Ishikawa |
(Primary: On-site, Secondary: Online) |
Vertically polarized omnidirectional reflector antenna fed by a circular waveguide bent TM01 mode converter for the 150 GHz band Jiro Hirokawa, Riki Yanagisawa, Takashi Tomura (Science Tokyo), Issei Watanabe (NICT) AP2024-137 |
A vertically polarized horizontal-plane omnidirectional antenna with a circular waveguide bent TM01 mode converter and a... [more] |
AP2024-137 pp.13-18 |
MIKA (3rd) |
2023-10-10 15:35 |
Okinawa |
Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
A Study on High Gain Thin Lens Antenna Considering Application to Non-Terrestrial Network (NTN) Genma Hattroi, Sou Ema, Issei Watanabe, Yuta Horie (MWF) |
In the next-generation wireless communication system, Beyond5G/6G,it is expected to expand the communication area not on... [more] |
|
MIKA (3rd) |
2023-10-10 15:35 |
Okinawa |
Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Study on Near-Field Amplitude Distribution Applicable to Planar Scanning NFFFT (Near-Field to Far-Field Transformation) for Horn Antenna So Ema, Genma Hattori, Issei Watanabe, Kondo Motoya, Yuta Horie (MWF) |
The measurement of radiation directivity for antennas with a very large aperture relative to the wavelength is difficult... [more] |
|
AP, SANE, SAT (Joint) |
2023-07-13 13:20 |
Hokkaido |
The Citizen Activity Center (Primary: On-site, Secondary: Online) |
A Study on Thinner Lens Antenna with High Dielectric Constant and Antireflection Coatings Considering Application to Non-Terrestrial Network Genma Hattori, Issei Watanabe, Yuta Horie (MWF) AP2023-45 SANE2023-26 SAT2023-21 |
In the next-generation wireless communication system, Beyond5G/6G,it is expected to expand the communication area not on... [more] |
AP2023-45 SANE2023-26 SAT2023-21 pp.76-81(AP), pp.27-32(SANE), pp.65-70(SAT) |
SANE, SAT (Joint) |
2023-03-03 14:20 |
Okinawa |
(Primary: On-site, Secondary: Online) |
A Study on High Gain Millimeter Wave Band Lens Antenna Considering Application to Non-Terrestrial Network (NTN) Genma Hattori, Issei Watanabe, Yuta Horie (MWF) SAT2022-68 |
Dielectric lens antennas have been proposed for a lot of applications, for example, material evaluation, sensing technol... [more] |
SAT2022-68 pp.69-74 |
ED, MWPTHz |
2022-12-19 15:25 |
Miyagi |
|
Admittance spectroscopy of triple-barrier resonant tunneling diodes for extraction of quantum transport parameters. Takeshi Makino, Michihiko Suhara (TMU), Kiyoto Asakawa (TMCIT), Issei Watanabe, Koichi Akahane (NICT) ED2022-75 MWPTHz2022-46 |
Triple-barrier resonant tunneling diodes (TBRTDs) consisting of InGaAs/InAs/InAlAs heterostructures fabricated by low-te... [more] |
ED2022-75 MWPTHz2022-46 pp.19-22 |
QIT (2nd) |
2022-12-08 09:45 |
Kanagawa |
Keio Univ. (Primary: On-site, Secondary: Online) |
Trade-off relations between measurement dependence and hiddenness for separable hidden variable models Ryo Takakura (Kyoto Univ.), Kei Morisue (Waseda Univ.), Issei Watanabe, Gen Kimura (SIT) |
The Bell theorem is investigated as a trade-off relation between assumptions for the underlying hidden variable model. C... [more] |
|
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] |
2022-07-19 16:35 |
Hokkaido |
Asahikawa Civic Culture Hall (Primary: On-site, Secondary: Online) |
Transmission of 120GHz-band RF Signal by Contacting Another Dielectric Sheet 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 |
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 |
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 |
CQ, CBE (Joint) |
2021-01-20 09:45 |
Online |
Online |
Study on signal selection in blind based virtual massive array Sota Takahashi, Issei Watanabe, Kentaro Nishimori, Ryotaro Taniguchi (Niigata Univ.), Tomoki Murakami (NTT) CQ2020-60 |
In fifth-generation (5G) and later (B5G/6G) systems, massive multiple-input-multiple-output (MIMO) systems using a large... [more] |
CQ2020-60 pp.1-4 |
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 |
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 |
CQ (2nd) |
2019-09-05 10:40 |
Tokyo |
Inter-University Seminar House |
[Poster Presentation]
Propagation environmental control using high speed pattern switching and blind algorithm Sota Takahashi, Kentaro Nishimori, Issei Watanabe, Ryotaro Taniguchi (Niigata Univ.), Tomoki Murakami (NTT) |
[more] |
|
CQ |
2019-05-30 13:45 |
Hiroshima |
Hiroshima City University |
A proposal on propagation environmental control by virtual massive array Issei Watanabe, Kentaro Nishimori, Ryotaro Taniguchi (Niigata Univ.), Tomoki Murakami (NTT) CQ2019-15 |
With the rapid spread of wireless communication devices such as smartphones in recent years, mobile communication traffi... [more] |
CQ2019-15 pp.23-26 |