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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 10 of 10  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
MIKA
(3rd)
2023-02-21
14:55
Niigata
(Primary: On-site, Secondary: Online)
Talk in memory of Prof. Nishimori
Jiro Hirokawa (Tokyo Inst. of Tech.)
 [more]
AP 2022-10-19
12:20
Gifu GIFU CITY CULTURE CENTER
(Primary: On-site, Secondary: Online)
[Poster Presentation] Research of Millimeter-wave Band Waveguide Slot Array Antenna for Increasing Transmission Capacity in Two-dimensional Quadrature Multiplex Transmission in Rectangular Coordinate System
Masashi Fujishiro, Jiro Hirokawa, Takashi Tomura (TokyoTech) AP2022-119
One type of MIMO is rectangular-coordinate two-dimensional multiplex transmission (ROM transmission). In this study, we ... [more] AP2022-119
pp.105-108
MIKA
(3rd)
2022-10-15
13:30
Niigata Niigata Citizens Plaza
(Primary: On-site, Secondary: Online)
[Invited Talk] Numerical design of one-dimensional switching matrices with an arbitrary number of beams and application to millimeter-wave two-dimensional ones
Jiro Hirokawa (Tokyo Institute of Technology)
 [more]
AP, SANE, SAT
(Joint)
2022-07-27
16:30
Hokkaido Asahikawa Taisetsu Crystal Hall
(Primary: On-site, Secondary: Online)
SAR Observation with High Resolution, Wide Swath by Deployable Corporate-Fed Slot Array Antenna
Kosei Ishimura (Waseda Univ./Tokyo Inst. Tech.), Kosei Ishimura (Waseda Univ.), Jiro Hirokawa (Tokyo Inst. Tech.) AP2022-38 SANE2022-23 SAT2022-19
We have developed a synthetic aperture radar system with 1m ground resolution compatible with 100kg small satellite. The... [more] AP2022-38 SANE2022-23 SAT2022-19
pp.22-27(AP), pp.6-11(SANE), pp.12-17(SAT)
CS 2022-07-15
13:15
Kagoshima Yakushima Environmental and Cultural Village Center
(Primary: On-site, Secondary: Online)
[Invited Talk] Study of next-generation ultra-high-speed transmission and wide-area networking using mobile relay stations
Takefumi Hiraguri (NIT), Kentaro Nishimori (Niigata Univ), Jro Hirokawa (Tokyo Tech), Takahiro Matsuda (TMU), Tetsuro Imai (TDU) CS2022-34
 [more] CS2022-34
pp.95-97
SR, SRW
(Joint)
2015-10-27
09:30
Tokyo KKE [Technology Exhibit] Prototype of 3-Gb/s 60-GHz Millimeter-wave-based Wireless File-transfer System
Kenichi Okada, Masaya Miyahara, Jiro Hirokawa, Makoto Ando (Tokyo Tech) SR2015-63 SRW2015-44
 [more] SR2015-63 SRW2015-44
pp.61-62
SR, SRW
(Joint)
2015-10-27
16:00
Tokyo KKE [Invited Lecture] BER and Service Area Measurement of Compact Range Communication with Radial Line Slot Antennas
Makoto Ando, Masahiro Wakasa, Koji Toyosaki, Tung Nguyen Xuan, Ali Maifuz, Miao Zhang, Jiro Hirokawa, Kiyomichi Araki (Tokyo Tech) SR2015-71
 [more] SR2015-71
pp.87-92
AP, SANE
(Joint)
2014-08-28
12:45
Niigata Niigata University Satellite campus [Invited Lecture] Compact X-band Synthetic Aperture Radar for 100kg Class Satellite
Hirobumi Saito, Prilando Rizki Akbar, Atsushi Tomiki (JAXA), Ravindra Vinay, Ryohei Naruse, Budhaditya Pyne (Univ. of Tokyo), Miao Zhang, Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.) AP2014-75 SANE2014-50
 [more] AP2014-75 SANE2014-50
pp.19-24(AP), pp.13-18(SANE)
AP 2007-05-18
14:15
Kochi Kochi Univ. of Tech. Proposal of Radio Wave Shutter Using Electrically Invisible Dipoles and Basic Study on Its Transparent and Shield Performance
Kyoichi Iigusa (NICT/Tokyo Inst.of Techn.), Hiroshi Harada, Shuzo Kato (NICT), Jiro Hirokawa, Makoto Ando (TIT) AP2007-27
We propose a radio-wave shutter, which can switch electronically transparent state and shield state, using the mechanism... [more] AP2007-27
pp.81-86
RCS, MoNA, WBS, SR, MW
(Joint)
2007-03-09
16:50
Kanagawa YRP Research and Standardization activty for IEEE802.15.3c mmW WPAN -- (6) Antenna --
Ichihiko Toyoda (NTT), Makoto Ando (TIT), Kyoichi Iigusa, Hirokazu Sawada (NICT), Kenichi Maruhashi, Naoyuki Orihashi (NEC), Tomohiro Seki (NTT), Seiji Nishi (OKI), Shoichi Kitazawa, Amane Miura (ATR), Yoshitsugu Fujita, Hiroshi Uchimura (KYOCERA), Tsukasa Yoneyama (MMEX), Jiro Hirokawa, Yasutake Hirachi (TIT) RCS2006-283
The IEEE 802.15.3 Task Group 3c (TG3c) is developing a millimeter-wave-based alternative physical layer (PHY) for the ex... [more] RCS2006-283
pp.195-198
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