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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 |
| AP, MW (Joint) |
2017-09-22 09:20 |
Saitama | Saitama University | Design of the Excitation Coefficients of Monopulse Waveguide Slot Array Antenna with Corporate-feed in Rectangular-coordinate Orthogonality Multiplexing Transmission Ryotaro Ohashi, Takashi Tomura, Jiro Hirokawa (Tokyo Inst. of Tech.) AP2017-90 |
[more] | AP2017-90 pp.13-17 |
| AP, MW (Joint) |
2017-09-22 09:45 |
Saitama | Saitama University | Mode Matching/FEM Hybrid Analysis for a Short-slot 2-plane Coupler considering the Three-dimensional Structural Symmetry Masahiro Wakasa, Dong-Hun Kim, Takashi Tomura, Jiro Hirokawa (Tokyo Inst. of Tech.) AP2017-91 |
A short-slot 2-plane coupler, which combines short-slot H-plane and E-plane coupler into one body has been proposed. In ... [more] | AP2017-91 pp.19-23 |
| AP | 2017-08-24 14:50 |
Hokkaido | National Institute of Technology, Hakodate College | Design of Simultaneous Generation of Three OAM Modes by Using a RLSA Fed by a Waveguide Circuit in the 60-GHz Band Xin Xu, Jiro Hirokawa (Tokyo Inst. of Tech.), Agnese Mazzinghi, Angelo Freni (Univ. of Florence) AP2017-77 |
This paper reports a 60-GHz radial line slot antenna (RLSA) for non-far region orbital angular momentum (OAM) multiplexi... [more] | AP2017-77 pp.49-52 |
| AP, SAT, SANE (Joint) |
2017-07-26 15:55 |
Aichi | Nagoya Institute of Technology | Feasibility of a 60GHz-band Semi-rigid Cable Monopole Antenna for Inserting into an Oscillator Chip Yuta Saito, Takashi Tomura, Jiro Hirokawa, Kenichi Okada (Tokyo Inst. of Tech.) AP2017-48 |
This paper proposes the structure inserted a semi-rigid cable monopole antenna into a 60GHz band oscillator chip. We dis... [more] | AP2017-48 pp.19-22 |
| AP, SAT, SANE (Joint) |
2017-07-27 09:10 |
Aichi | Nagoya Institute of Technology | Suppression of E-plane Sidelobes 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 Inst. of Tech.) AP2017-50 SAT2017-6 |
We have suppressed E-plane sidelobe level in the tilted direction between 30-40 deg. in Taylor radiation pattern by usin... [more] | AP2017-50 SAT2017-6 pp.29-34(AP), pp.1-6(SAT) |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
60 GHz-Band Antenna Beam Forming by Radio-over-Fiber with Variable Delay Line Tatsuya Nagayama, Shigeyuki Akiba, Jiro Hirokawa (Tokyo Tech.) |
We experimentally demonstrated 60 GHz-band antenna beam forming of integrated photonic array antenna in a Radio-over-Fib... [more] | |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
Design of the Feeding Layer in a Waveguide Reflection-canceling Slot Array Antenna to improve the Bandwidth in the 60GHz Band Mikihiro Aruga, Takashi Tomura, Jiro hirokawa (Tokyo Tech) |
The feeding layer is designed in a waveguide reflection-canceling 16x28-slot array antenna in order to suppress the side... [more] | |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Poster Presentation]
Feasibility of Antenna System for Rectangular-coordinate Orthogonality Multiplexing by using Corporate-feed Waveguide Slot Array Antenna and Monopulse Circuit Ryotaro Ohashi, Takashi Tomura, Jiro Hirokawa (Tokyo Tech) |
This paper discusses the multiplexing antenna system using two-dimensional orthogonal field distribution in the rectangu... [more] | |
| AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido | Hokkaido University | [Invited Talk]
Proposal of Rectangular Coordinate Orthogonal Multiplexing Antenna System Jiro Hirokawa (Tokyo Tech) |
This paper proposes the rectangular coordinate orthogonal multiplexing (ROM) antenna system, which is equivalent to OAM ... [more] | |
| AP | 2017-06-08 13:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Measurement evaluation of a two-slot array antenna fed by a post-wall waveguide in the 60-GHz band for mobile terminals Takashi Tomura, Haruhisa Hirayama, Jiro Hirokawa (Tokyo Tech) AP2017-40 |
In this paper, we propose a two-slot antenna inserted by an edge of a mobile device substrate for the 60-GHz band. The d... [more] | AP2017-40 pp.1-6 |
| CQ | 2017-05-29 15:40 |
Miyazaki | Hotel Merieges (Miyazaki) | [Special Invited Talk]
Feasibility of Rectangular-Coordinate Two-Dimensionally Orthogonal Multiplexing Short-Distance Transmission using Waveguide Planar Antennas Jiro Hirokawa (Tokyo Tech) CQ2017-21 |
This paper discusses the multiplexing antenna system using two-dimensional orthogonal field distribution in rectangular ... [more] | CQ2017-21 pp.43-46 |
| SR | 2017-05-26 10:00 |
Tokyo | Tokyo big sight | [Technology Exhibit]
Experimental testbed for massive MIMO at 2.4/5.1/19.5 GHz bands Kentaro Nishimori (Niigata Univ.), Takefumi Hiraguri (NIT), Jiro Hirokawa (TIT) SR2017-19 |
[more] | SR2017-19 pp.113-118 |
| WPT | 2017-03-07 11:15 |
Kyoto | Kyoto Univ. Uji Campus | Measurement of SAR Antenna For Small Satellite At METLAB Hirobumi Saito, Prilando Rizki Akbar, Koji Tanaka (JAXA), Jiro Hirokawa (Tokyo Inst. of Tech.) WPT2016-78 |
[more] | WPT2016-78 pp.69-74 |
| RCS, SR, SRW (Joint) |
2017-03-01 16:00 |
Tokyo | Tokyo Institute of Technology | Feature detection scheme using Cyclic Prefix (CP) in OFDM Signal
-- Hardware implementation of feature detector and its characteristics -- Akihide Nagamine (Titech), Kanshiro Kashiki (KDDI Research), Fumio Watanabe, Jiro Hirokawa (Titech) SR2016-97 |
In the communication specification of the fifth generation mobile system, it is considered that frequency sharing will b... [more] | SR2016-97 pp.35-40 |
| AP (2nd) |
2017-01-26 - 2017-01-27 |
Overseas | Malaysia-Japan International Institute of Technology (MJIIT) | Design of the Amplitude Distribution of an Antenna Aperture using Gaussian Mode Expansion in order to generate the Uniform Field Intensity in the Non-far Region Dan Mohri, Ryotaro Ohashi, Makoto Ando, Jiro Hirokawa (Tokyo Tech,) |
An aperture antenna with uniform field generates the ripples of the field intensity in its non-far region and potentiall... [more] | |
| AP (2nd) |
2017-01-26 - 2017-01-27 |
Overseas | Malaysia-Japan International Institute of Technology (MJIIT) | Estimation of interference between antennas in short range communication using Signal Flow Graph ThanhPhan Do, Kiyomichi Araki, Jiro Hirokawa, Makoto Ando (Tokyo Tech) |
In short-range, the interference due to back-scattering between antennas is a crucial element to determine communication... [more] | |
| AP (2nd) |
2017-01-26 - 2017-01-27 |
Overseas | Malaysia-Japan International Institute of Technology (MJIIT) | Fabrication of a Dual-polarized Corporate-feed Waveguide 32x32-slot Array Antenna with an Orthomode Transducer for 40 GHz Band Taihei Fujino, Jiro Hirokawa, Makoto Ando (Tokyo Tech.), Katsumori Sasaki, Ichiro Oshima (Denki Kogyo Co., Ltd) |
A dual-polarized corporate-feed waveguide 32x32-slot array antenna with an orthomode transducer is designed for 40 GHz b... [more] | |
| AP (2nd) |
2017-01-26 - 2017-01-27 |
Overseas | Malaysia-Japan International Institute of Technology (MJIIT) | Design of a Matching Circuit using a Post for a Metal Cap with Two Slots for a 60 GHz-band Mobile Module Haruhisa Hirayama, Jiro Hirokawa, Makoto Ando (Tokyo Tech) |
This paper presents a design of the matching circuit using a post for a metal cap with two slots for a 60 GHz-band mobil... [more] | |
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