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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 205  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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
17:00
Online Online Study on multimode-fiber transmission capacity expansion based on precise measurement of time-domain variation of frequency response
Takuya Koyama, Ryoga Kawabata, Shota Nakamaru, Zu-Kai Weng (Waseda Univ.), Keizo Inagaki (NICT), Kunihisa Jitsuno, Tetsuya Kawanishi (Waseda Univ.) MWP2021-6
With the advent of the IoT society, the demand for low-cost moderate transmission capacity fiber optic communication is ... [more] MWP2021-6
pp.23-28
MWP 2021-05-26
17:25
Online Online Measurement of frequency characteristic in photodetectors using two-tone signals and estimation of non-linearity in photodetectors for wide-band signals
Yuta Maeda, Nonoka Maniwa, Yuki Seto, Ryoga Kawabata (Waseda Univ.), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) MWP2021-7
In wideband radio systems, radio-over-fiber would play important roles in simplification of the system. In a fiber wirel... [more] MWP2021-7
pp.29-33
MWP 2021-05-26
17:50
Online Online Interference suppression simulation by two-tone FMCW signals in 90GHz band linear cell radar
Kazunori Okuda, Tomohiko Kanaya, Satomi Masuda (Waseda Univ.), Keizo Inagaki (NICT/Waseda Univ.), Tetsuya Kawanishi (Waseda Univ./NICT) MWP2021-8
There is an increasing demand for automation and precision in radars that detect foreign of debris on the runway. In thi... [more] MWP2021-8
pp.34-38
EMT, MWP, PN, IEE-EMT [detail] 2021-01-21
13:00
Online Online Modulated signal transfer quality of long flexible waveguide
Tadashi Watanabe (OLYMPUS Corp.), Kunihisa Jitsuno, Tetsuya Kawanishi (Waseda Univ.) PN2020-33 EMT2020-51 MWP2020-34
 [more] PN2020-33 EMT2020-51 MWP2020-34
pp.24-27
EMT, MWP, PN, IEE-EMT [detail] 2021-01-21
14:55
Online Online Demonstration of 5G Mobile Network System based on hybrid IFoF and RoF/RoMMF links
Hsuan-Yun Kao (KDDI Research), Hiroki Yasuda (Yazaki), Shota Ishimura, Kazuki Tanaka (KDDI Research), Takamitsu Aiba, Tomohiro Wakabayashi (Yazaki), Kosuke Nishimura (KDDI Research), Tetsuya Kawanishi (Waseda Univ.), Ryo Inohara (KDDI Research) PN2020-36 EMT2020-54 MWP2020-37
A proof-of-concept experiment is demonstrated for 5G end-to-end MFH system based on hybrid IFoF and RoF/RoMMF transmissi... [more] PN2020-36 EMT2020-54 MWP2020-37
pp.37-41
RCS 2020-10-22
15:50
Online Online [Invited Talk] Long-range THz transmission for mobile networks
Tetsuya Kawanishi (Waseda Univ.) RCS2020-101
High-speed radio transmission can be realized by using THz-bands, where wide frequency bands are available for various s... [more] RCS2020-101
p.52
MWP 2020-10-21
16:10
Online Online Transmission Characteristics of 28-GHz Band Analog Radio over Fiber Employing Single-Mode/Multi-Mode VCSEL
Hiroki Yasuda, Takamitsu Aiba, Hiroshi Ishida, Tomohiro Wakabayashi (Yazaki), Tetsuya Kawanishi (Waseda Univ.) MWP2020-29
In 28-GHz band, we would have many radio-wave signal insensitive areas due to shadowing effect by building walls. Radio ... [more] MWP2020-29
pp.15-19
CS, IN, NS, NV
(Joint)
2020-09-10
11:15
Online Online [Invited Lecture] Study on short distance in-vehicle transmision of 28 GHz band 5G signal employing radio over fiber
Takamitsu Aiba, Toshinori Suzuki, Hiroki Yasuda, Satoshi Tanaka (YAZAKI), Atsushi Kanno, Nookatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.), Tomohiro Wakabayashi (YAZAKI) CS2020-37
 [more] CS2020-37
pp.15-19
R, LQE, OPE, CPM, EMD 2020-08-28
15:35
Online Online [Invited Talk] Multi-pixel type photodetector and its application for coherent receiver
Toshimasa Umezawa, Yuki Yoshida, Atsushi Kanno, Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Uni.) R2020-16 EMD2020-15 CPM2020-8 OPE2020-28 LQE2020-8
 [more] R2020-16 EMD2020-15 CPM2020-8 OPE2020-28 LQE2020-8
pp.33-37
SRW 2020-08-25
13:00
Online Online [Invited Talk] Future prospective of over 1km high-speed THz wireless transmission
Tetsuya Kawanishi (Waseda Univ.) SRW2020-22
High-speed wireless data transfer can be realized by using radio-waves in THz-bands, where wide frequency bands are avai... [more] SRW2020-22
pp.61-65
SRW 2020-08-25
13:50
Online Online [Invited Talk] Evaluation of Antenna and Propagation Models for beyond 5G System
Akihiko Hirata (CIT), Shintaro Hisatake (Gifu Univ.), Tetsuya Kawanishi (Waseda Univ.) SRW2020-23
 [more] SRW2020-23
pp.67-70
EMT, MW, OPE, EST, MWP, THz, IEE-EMT [detail] 2020-07-16
10:00
Online Online In-vehicle cable wiring transmission of 5G-NR radio signal employing radio over multi-mode fiber
Takamitsu Aiba, Toshinori Suzuki, Shota Kunikata, Hiroki Yasuda, Satoshi Tanaka (YAZAKI), Atsuhi Kanno, Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.), Tomohiro Wakabayshi (YAZAKI) EMT2020-6 MW2020-15 OPE2020-1 EST2020-6 MWP2020-6
 [more] EMT2020-6 MW2020-15 OPE2020-1 EST2020-6 MWP2020-6
pp.1-5
MWP 2020-05-28
15:05
Online Online Study on improvement of frequency flatness for analog radio over fiber subsystem with coupling transmission line
Satoshi Tanaka, Takamitsu Aiba, Toshinori Suzuki, Hiroki Yasuda (YAZAKI Corp.), Atsushi Kanno, Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.), Tomohiro Wakabayashi (YAZAKI Corp.) MWP2020-3
The analog radio over fiber (A-RoF) employing directly modulated VCSEL and multi-mode fibers is one of the technique of ... [more] MWP2020-3
pp.13-17
MWP, PN, EMT, PEM, IEE-EMT [detail] 2020-01-30
10:35
Kyoto Dosisha Univ. Experimental Study on a Two-Frequency Secondary-Radar System Using Large Radio Anechoic Chamber
Masuda Satomi, Erika Shigematsu, Kunihisa Jitsuno (Waseda Univ.), Keizo Inagaki, Atsushi Kanno (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2019-36 EMT2019-76 MWP2019-50
 [more] PN2019-36 EMT2019-76 MWP2019-50
pp.11-14
 Results 1 - 20 of 205  /  [Next]  
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