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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 210  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EMT, PN, MWPTHz, IEE-EMT [detail] 2024-01-23
09:40
Kyoto Kyoto Univ. Yoshida Campus Terahertz wave scattering experiment and simulation from random rough surface of dielectric on metal
Yoshihide Asakura, Riku Yoshino, Arata Ogaki (Waseda Univ.), Jerdvisanop Cakarothai, Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2023-57 EMT2023-97 MWPTHz2023-85
Terahertz waves is attracting increasing attention such as Beyond 5G. However, due to short wavelength, it is needed to ... [more] PN2023-57 EMT2023-97 MWPTHz2023-85
pp.56-59
EMT, PN, MWPTHz, IEE-EMT [detail] 2024-01-23
10:05
Kyoto Kyoto Univ. Yoshida Campus Scattering experiment and effect of polarization from wooden surface for terahertz wave
Riku Yoshino, Yoshihide Asakura (Waseda Univ.), Jerdvisanop Chakarothai, Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2023-58 EMT2023-98 MWPTHz2023-86
The research about terahertz wave have been a careful attention toward Beyond 5G system. Because the wavelength of tera... [more] PN2023-58 EMT2023-98 MWPTHz2023-86
pp.60-63
EMT, PN, MWPTHz, IEE-EMT [detail] 2024-01-23
10:55
Kyoto Kyoto Univ. Yoshida Campus 300GHz Wireless Unit
Arata Ogaki (Waseda Univ.), Masataka Sugiyama (SED), Kunihisa Jitsuno (Waseda univ.), Tetsuya Kawanishi (Waseda Univ.) PN2023-60 EMT2023-100 MWPTHz2023-88
This paper describes a 300 GHz band wireless unit under development. The wireless unit is designed for bi-directional co... [more] PN2023-60 EMT2023-100 MWPTHz2023-88
pp.70-73
EMT, PN, MWPTHz, IEE-EMT [detail] 2024-01-23
13:15
Kyoto Kyoto Univ. Yoshida Campus Tolerance on Velocity Mismatch in Traveling-Wave Modulator Integrated with Electro-Optic Frequency-Domain Equalizer
Yuya Yamaguchi, Pham Tien Dat, Kouichi Akahane, Naokatsu Yamamoto (NICT), Atsushi Kanno (Nitech), Tetsuya Kawanishi (Waseda Univ.) PN2023-62 EMT2023-102 MWPTHz2023-90
 [more] PN2023-62 EMT2023-102 MWPTHz2023-90
pp.78-81
ED, MWPTHz 2023-12-21
15:20
Miyagi RIEC, Tohoku Univ.
(Primary: On-site, Secondary: Online)
Measurement and Simulation of Terahertz Wave Scattering from Dielectric Surfaces
Riku Yoshino, Yoshihide Asakura, Ogaki Arata (Waseda Univ.), Jerdvisanop Chakarothai, Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) ED2023-54 MWPTHz2023-64
Millimeter and terahertz waves have been researched as an important factor for next wireless communication system such a... [more] ED2023-54 MWPTHz2023-64
pp.7-10
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] 2023-07-21
09:10
Hokkaido Muroran Institute of Technology
(Primary: On-site, Secondary: Online)
Scattering experiment and simulation at 300GHz from slightly rough surface on dielectric
Riku Yoshino, Yoshihide Asakura (Waseda Univ), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ) EMT2023-36 MW2023-54 OPE2023-36 EST2023-36 MWPTHz2023-32
It is expected millimeter-wave and terahertz wave will be used for B5G and 6G system to realize high-speed and large-cap... [more] EMT2023-36 MW2023-54 OPE2023-36 EST2023-36 MWPTHz2023-32
pp.143-146
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] 2023-07-21
10:00
Hokkaido Muroran Institute of Technology
(Primary: On-site, Secondary: Online)
High-speed Fading Measurement of Millimeter-wave Broadband Signals
Kazuki Tsushima (Waseda Univ.), Keizo Inagaki (NICT), Kunihisa Jitsuno, Arata Ogaki, Keisuke Miyano, Tetsuya Kawanishi (Waseda Univ.) EMT2023-38 MW2023-56 OPE2023-38 EST2023-38 MWPTHz2023-34
In wireless communications, fading is a propagation characteristic that degrades communication quality. Millimeter wave ... [more] EMT2023-38 MW2023-56 OPE2023-38 EST2023-38 MWPTHz2023-34
pp.151-154
PN 2023-03-01
15:10
Okinawa
(Primary: On-site, Secondary: Online)
[Invited Talk] High-speed beam steering technology toward Beyond 5G
Hideyuki Nosaka (Ritsumeikan Univ.), Takana Kaho (SIT), Tetsuya Kawanishi (Waseda Univ.) PN2022-46
Towards Beyond 5G systems, high-speed beam steering technology is required to realize innovative functions such as high-... [more] PN2022-46
pp.23-27
ED, MWPTHz 2022-12-19
14:05
Miyagi   Design of Fθ lens for scanning terahertz imaging
Ruoxun Feng (Waseda Univ), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ) ED2022-73 MWPTHz2022-44
In the next-generation mobile communication system Beyond 5G, the active use of terahertz waves with higher frequencies ... [more] ED2022-73 MWPTHz2022-44
pp.11-14
ED, MWPTHz 2022-12-20
13:00
Miyagi   [Invited Talk] Bi-directional real-time 300GHz radio communication system
Tetsuya Kawanishi (Waseda Univ.) ED2022-83 MWPTHz2022-54
This presentation provides an overview of the research results obtained in the EU-Japan joint research project: ThoR (Te... [more] ED2022-83 MWPTHz2022-54
pp.58-61
ED, MWPTHz 2022-12-20
13:40
Miyagi   Optical and RF signal phase measurement using Mach-Zehnder modulators based on optical spectrum analysis
Huang Qingchuan (Waseda Univ), Keizou Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ) ED2022-84 MWPTHz2022-55
Wide applications of massive MIMO antenna system require well adjustments of phase difference between sub antenna units.... [more] ED2022-84 MWPTHz2022-55
pp.62-66
ED, MWPTHz 2022-12-20
14:05
Miyagi   A method to compensate low frequency component for variable-linewidth laser controlled by Brownian random walk phase noise
Chen Zheng, Yu Zhou (Waseda Univ.), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) ED2022-85 MWPTHz2022-56
 [more] ED2022-85 MWPTHz2022-56
pp.67-70
OPE, LQE, OCS 2022-11-18
16:30
Online Online [Special Invited Talk] Ti-diffused LiNbO3 Modulator Integrated with Electro-Optic Frequency-Domain Equalizer for High Bandwidth
Yuya Yamaguchi, Pham Tien Dat (NICT), Shingo Takano, Masayuki Motoya, Yu Kataoka, Junichiro Ichikawa, Satoshi Oikawa, Ryo Shimizu (Sumitomo Osaka Cement), Naokatsu Yamamoto (NICT), Atsushi Kanno (Nagoya Institute of Technology/NICT), Tetsuya Kawanishi (Waseda Univ./NICT) OCS2022-58 OPE2022-93 LQE2022-56
 [more] OCS2022-58 OPE2022-93 LQE2022-56
pp.30-33
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] 2022-07-19
15:45
Hokkaido Asahikawa Civic Culture Hall
(Primary: On-site, Secondary: Online)
Fundamental Characteristic Measurements of Electroabsorption Modulator Integrated Laser Diode for Vector Modulation
Yuki Seto (Waseda Univ.), Keizo Ingaki (NICT), Tetsuya Kawanishi (Waseda Univ.) EMT2022-28 MW2022-52 OPE2022-31 EST2022-29 MWPTHz2022-26
We measured the fundamental characteristics of an EA modulator integrated laser diode for vector modulation of light. Di... [more] EMT2022-28 MW2022-52 OPE2022-31 EST2022-29 MWPTHz2022-26
pp.99-102
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] 2022-07-19
16:10
Hokkaido Asahikawa Civic Culture Hall
(Primary: On-site, Secondary: Online)
Simulation of terahertz wave scattering from slightly rough surface on woods and stones
Riku Yoshino, Toshiya Yoshida, Kunihisa Jitsuno (Waseda Univ.), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) EMT2022-29 MW2022-53 OPE2022-32 EST2022-30 MWPTHz2022-27
Millimeter and terahertz waves have been researched owing to apply next transmission system such as 6th generation. Howe... [more] EMT2022-29 MW2022-53 OPE2022-32 EST2022-30 MWPTHz2022-27
pp.103-108
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] 2022-07-20
10:50
Hokkaido Asahikawa Civic Culture Hall
(Primary: On-site, Secondary: Online)
Uplink transmission of 28 GHz Band RF Signals using A-RoMMF
Hiroki Yasuda, Takamitsu Aiba, Toshinori Suzuki, Satoshi Tanaka, Tomohiro Wakabayashi (Yazaki), Tetsuya Kawanishi (Waseda Univ.) EMT2022-41 MW2022-65 OPE2022-44 EST2022-42 MWPTHz2022-39
(To be available after the conference date) [more] EMT2022-41 MW2022-65 OPE2022-44 EST2022-42 MWPTHz2022-39
pp.163-167
PN, MWP, EMT, PEM, IEE-EMT [detail] 2022-01-27
10:35
Online Online Modeling and experimental study of W-band millimeter-wave scattering from slightly rough surfaces
Riku Yoshino, Tomohiko Kanaya, Shintaro Takada, Kunihisa Jitsuno (Waseda Univ), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ) PN2021-33 EMT2021-49 MWP2021-38
Recently, millimeter-wave and THz bands have been attracting attention as transmission media for high-speed wireless com... [more] PN2021-33 EMT2021-49 MWP2021-38
pp.7-10
PN, MWP, EMT, PEM, IEE-EMT [detail] 2022-01-27
11:00
Online Online A Study on Millimeter Wave Band Radar Characterization for Evaluation of Wideband Propagation Characteristics
Tomohiko Kanaya, Shintaro Takada, Riku Yoshino, Kunihisa Jitsuno (Waseda Univ.), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2021-34 EMT2021-50 MWP2021-39
The use of millimeter waves and terahertz bands is expected in the development of wireless technology after 5G, and the ... [more] PN2021-34 EMT2021-50 MWP2021-39
pp.11-14
PN, MWP, EMT, PEM, IEE-EMT [detail] 2022-01-27
13:30
Online Online Experimental Study of In-Vehicle Secondary radar to detect pedestrians in NLOS
Satomi Masuda, Zhou Zhongqi, Maiko Kitamura, Mao Morishita, Kunihisa Jitsuno (Waseda Univ.), Keizo Inagaki, Atsushi Kanno (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2021-36 EMT2021-52 MWP2021-41
It's not easy to detect in areas where there are many obstacles to the signals, such as NLOS.
In this study, we invest... [more]
PN2021-36 EMT2021-52 MWP2021-41
pp.19-22
MWP 2021-05-26
15:35
Online Online Examination of MMF transmission characteristics by changing the excitation state of the optical signal and the PD diameter in the SHF band
Yuki Shimamura (Waseda Univ.), Hiroki Yasuda (Waseda Univ./YAZAKI Corp.), Ryouga Kawabata (Waseda Univ.), Takamitu Aiba (YAZAKI Corp.), Keizo Inagaki (NICT), Tetuya Kawasnishi (Waseda Univ.) MWP2021-4
 [more] MWP2021-4
pp.14-18
 Results 1 - 20 of 210  /  [Next]  
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