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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MWP | 2018-11-26 14:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Proximity wireless data transmission characteristics using planar slot array antenna Akihiko Hirata (CIT), Jiro Hirokawa (Tokyo Tech), Masato Sonoda, Taiki Higashimoto, Tsubasa Kurokwa, Tadao Nagatsuma (Osaka Univ.)  MWP2018-45 |
[more] | MWP2018-45 pp.9-12 |
| RCS, AP (Joint) |
2018-11-20 10:05 |
Okinawa | Okinawa Industry Support Center | Design of H-plane Sidelobe Suppression using a Slit Layer in a Corporate-feed Waveguide Slot Array Antenna consisting of 2x2-element Radiating Units Haruka Arakawa, Hisanori Irie, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2018-101 |
We have suppressed H-plane sidelobe level in the tilted directions around 30-40 degrees in Taylor radiation pattern by i... [more] | AP2018-101 pp.1-4 |
| RCS, AP (Joint) |
2018-11-20 10:25 |
Okinawa | Okinawa Industry Support Center | Design of Undesired-resonance Exclusion of a Degeneration-separated Hexagonal-cross-section Waveguide Circularly Polarized Aperture Antenna Shuki Wai, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2018-102 |
The corporate-feed waveguide slot array antenna is a high-efficiency and wide-band antenna in the millimeter-wave band. ... [more] | AP2018-102 pp.5-8 |
| RCS, AP (Joint) |
2018-11-20 11:35 |
Okinawa | Okinawa Industry Support Center | Radiation Characteristics of a Semi-rigid Cable Monopole Antenna Inserted into a 60GHz-band Oscillator Chip Yuta Saito, Takashi Tomura, Jiro Hirokawa, Kenichi Okada (Tokyo Tech) AP2018-105 |
[more] | AP2018-105 pp.19-22 |
| RCS, AP (Joint) |
2018-11-21 15:15 |
Okinawa | Okinawa Industry Support Center | [Invited Lecture]
Multi-beam massive MIMO eliminating CSI estimation Kentaro Nishimori, Fumiya Muramatsu, Ryotaro Taniguchi, Shota Ogawa (Niigata Univ.), Takefumi Hiraguri (NIT), Jiro Hirokawa (TIT) AP2018-125 RCS2018-199 |
[more] | AP2018-125 RCS2018-199 pp.137-142(AP), pp.127-132(RCS) |
| CQ, ICM, NS, NV (Joint) |
2018-11-16 15:35 |
Ishikawa | Multi-beam massive MIMO without CSI estimation Kentaro Nishimori (Niigata Univ.), Takefumu Hiraguri (NIIT), Jiro Hirokawa (TIT) NS2018-152 |
[more] | NS2018-152 pp.129-134 |
|
| AP, SANE, SAT (Joint) |
2018-07-19 14:25 |
Hokkaido | Hokkaido Univ. | Performance Evaluation of Multi-Beam Massive MIMO Using 64 Multi-Beam Pattern Akinori Kudo, Kentaro Nishimori, Ryotaro Taniguchi, Shota Ogawa, Fumiya Muramatsu (Niigata Univ.), Takefumi Hiraguri (NIT.), Jiro Hirokawa (Tokyo Tech.) AP2018-55 |
Multi-beam massive MIMO configuration has been proposed that utilizes the beam selection with high power in an analog pa... [more] | AP2018-55 pp.79-84 |
| SANE | 2018-06-22 13:00 |
Ibaraki | Tsukuba Space Center, JAXA | X band Synthetic Aperture Radar for 100kg class small satellite
-- Result of Engineering Model -- Hirobumi Saito (JAXA), Prilando Rizki Akbar (Keio Univ.), Budhaditya Pyne (U. Tokyo), Jiro Hirokawa (Tokyo Techn.), Koji Tanaka, Koichi Ijichi (JAXA), Hiromi Watanabe (Keio Univ.), Makoto Mita (JAXA), Tomoki Kaneko (U. Tokyo) SANE2018-13 |
[more] | SANE2018-13 pp.1-6 |
| SR | 2018-05-25 10:00 |
Tokyo | Tokyo big sight | [Technology Exhibit]
Implementation of multi-beam massive MIMO with overhead-less access control Kentaro Nishimori, Ryotaro Taniguchi (Niigata Univ.), Yoshiaki Morino, Takefumi Hiraguri (Nippon Inst. of Tech.), Jiro Hirokawa (Tokyo Inst. of Tech.) SR2018-18 |
[more] | SR2018-18 pp.107-112 |
| AP | 2018-05-17 11:00 |
Kumamoto | Kumamoto Univ. | Design of 2×2-Element Waveguide Slot Arrays by Filter Design Theory Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2018-16 |
In this paper, we report design results of a 2×2-element waveguide slot array by filter design theory. The designed ante... [more] | AP2018-16 pp.17-21 |
| AP | 2018-04-20 13:05 |
Tokyo | Hachijomachi-Shokokai | Basic configuration and performance of massive MIMO testbed at 19 GHz band Kentaro Nishimori, Ryotaro Taniguchi, Fumiya Muramatsu, Ryuki Maruyama, Shota Ogawa (Niigata Univ.), Takefumi Hiraguri (NIIT), Tsutomu Mitsui (Niigata Univ.), Shigeki Morisawa (RF testLab), Jiro Hirokawa (TIT) AP2018-9 |
[more] | AP2018-9 pp.41-46 |
| CQ, MVE, IE, IMQ (Joint) [detail] |
2018-03-08 09:30 |
Okinawa | Okinawa Industry Support Center | Experimental results on massive MIMO at 19GHz band in actual indoor environment Kentaro NIshimori, Ryotaro Taniguchi, Fumiya Muramatsu, Ryuki Maruyama, Shota Ogawa (Niigata Univ), Takefumi Hiraguri (NIIT), Tsutomu Mitsui (Niigata Univ), Shigeki Morisawa (RF Testlab), Jiro Hirokawa (TIT) CQ2017-103 |
[more] | CQ2017-103 pp.1-6 |
| AP | 2018-03-09 09:30 |
Gunma | Hotel Ichii (Kusatsu, Gunma) | Double-layer Slit Structure to Suppress E-plane Sidelobes in a Corporate-feed Waveguide Slot Array Antenna of 2x2-element Radiating Units Haruka Arakawa, Hisanori Irie, Takashi Tomura, Jiro Hirokawa (Tokyo Inst. of Tech.) AP2017-195 |
We have suppressed E-plane sidelobe level in the tilted direction between 30-40 deg. in Taylor radiation pattern by intr... [more] | AP2017-195 pp.19-22 |
| AP | 2018-03-09 09:55 |
Gunma | Hotel Ichii (Kusatsu, Gunma) | Design of a Dual-polarized Slot Array Antenna with Monopulse Corporate-feed Waveguides for Two-dimensional Orthogonal 8-multiplexing in the Non-far Region Kentaro Wada, Ryotaro Ohashi, Takashi Tomura, Jiro Hirokawa (Tokyo Inst. of Tech.) AP2017-196 |
We have proposed a dual-polarized slot array antenna with monopulse corporate-feed waveguides for rectangular-coordinate... [more] | AP2017-196 pp.23-26 |
| WPT | 2018-03-02 14:40 |
Kyoto | Kyoto Univ. Uji Campus | Measurement of SAR Antenna For Small Satellite At METLAB Part2 Prilando Rizki Akbar, Hirobumi Saito, Koji Tanaka (JAXA), Jiro Hirokawa (Tokyo Tech) WPT2017-73 |
A deployable parallel-plate slot array antenna for Synthetic Aperture Radar (SAR) sensor onboard small satellite is bein... [more] | WPT2017-73 pp.31-34 |
| EMT, EST, LQE, MWP, OPE, PEM, PN, IEE-EMT [detail] | 2018-01-25 10:50 |
Hyogo | Millimeter-Wave Band Beamforming of Array-Antenna Integrated with Photodiode by Radio-over-Fiber Technique Using Variable Optical Delay Line Tatsuya Nagayama, Shigeyuki Akiba, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) PN2017-71 EMT2017-108 OPE2017-149 LQE2017-131 EST2017-107 MWP2017-84 |
For the simplification of the mobile base stations architecture, we have presented remote beamforming of array antenna i... [more] | PN2017-71 EMT2017-108 OPE2017-149 LQE2017-131 EST2017-107 MWP2017-84 pp.197-202 |
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| SANE | 2018-01-25 14:25 |
Nagasaki | Nagasaki Prefectural Art Museum | Redesign using Moment of Method of Slot Array SAR Antenna on Small Satellite considerd Hard Wall Kengo Ando (UTokyo), Hirobumi Saito (JAXA), Jiro Hirokawa (Titech) SANE2017-91 |
[more] | SANE2017-91 pp.29-33 |
| AP, WPT (Joint) |
2018-01-19 15:10 |
Nara | ATR | Design of 16x16-element Monopulse Waveguide Slot Array Antenna with Corporate-feed in Rectangular-coordinate Orthogonal Multiplexing Transmission Ryotaro Ohashi, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2017-170 |
We have proposed an optimization design method for excitation coefficients that maximizes multiplexing transmission chan... [more] | AP2017-170 pp.111-114 |
| AP, WPT (Joint) |
2018-01-19 15:30 |
Nara | ATR | A Configuration Method of the Feeding Circuit with Arbitrary Number of Division in a Cooperate-feed Waveguide Slot Array Antenna Shuki Wai, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2017-171 |
The corporate-feed waveguide slot array antenna is a high-efficiency and wide-band antenna in the millimeter-wave band. ... [more] | AP2017-171 pp.115-119 |
| AP | 2017-10-20 09:00 |
Aomori | Hchinohe-Shoukou-Kaikan | Design of a Perpendicular-Corporate Feed in a Four-Layered Parallel-Plate Circularly-Polarized Slot Array Antenna Hisanori Irie, Takashi Tomura, Jiro Hirokawa (TITECH) AP2017-97 |
This paper presents the design of a perpendicular-corporate feed in a four-layered parallel-plate circularly-polarized s... [more] | AP2017-97 pp.15-18 |
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