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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2020-02-21 09:55 |
Shizuoka | Shizuoka Univ. Hamamatsu Campus | [Invited Lecture]
Bandwidth Enlargement of Circularly Polarized by Adding Matching Circuit to Hexagonal Radiation Element in Waveguide Slot Array Antenna Azuma Uichiro, Kudo Tomoaki (Dengyo)  AP2019-187 |
It has been reported that a hexagonal radiating element is used for circular polarization of a waveguide slot array ante... [more] | AP2019-187 pp.35-40 |
| AP | 2019-05-16 14:55 |
Hyogo | Kanpo-no-yado Arima (Arima Onsen, Hyogo) | Sidelobe Suppression in a Corporate-feed Waveguide Slot Array Antenna consisting of 2×2-element Radiating Units Jiro Hirokawa, Haruka Arakawa, Takashi Tomura (Tokyo Tech) AP2019-5 |
We have suppressed sidelobe level in the tilted direction between 30-40 deg. in Taylor radiation pattern by using a slit... [more] | AP2019-5 pp.25-28 |
| 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 10:45 |
Okinawa | Okinawa Industry Support Center | An Offset Structure of Subarray Elements with Radiation Cavity for Corporate-Feed Waveguide Slot Array Antenna Ryunosuke Murofushi, Uichiro Azuma, Tomoaki Kudo, Toshiyuki Kobayashi (Dengyo) AP2018-103 |
Corporate-feed waveguide slot array antenna has been proposed as one of antennas expected high gain and wide band charac... [more] | AP2018-103 pp.9-14 |
| 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 |
| 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, 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 | [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 | 2015-04-22 14:00 |
Okinawa | Ishigaki City | Design of a T-shaped bandpass filter integrating in the corporate-feed waveguide of a waveguide slot array antenna Xin Xu, Jiro Hirokawa, Makoto Ando (Tokyo Tech.) AP2015-3 |
In this paper, we propose a waveguide slot array antenna by integration of T-shaped filters using the diffusion bonding ... [more] | AP2015-3 pp.9-12 |
| MW | 2014-05-23 14:30 |
Kyoto | Doshisha Univ. | Design and Fabrication of a Circular Aperture Array Dual-circular-polarization Antenna on Hollow Cavities Satoshi Ito, Satoshi Suetsugu, Jiro Hirokawa, Makoto Ando (Tokyo Tech) MW2014-37 |
The plate-laminated waveguide slot array antenna is a high-efficiency and wide-bandwidth antenna in the millimeter-wave ... [more] | MW2014-37 pp.79-84 |
| MW (Workshop) |
2011-08-10 - 2011-08-12 |
Overseas | KMITL, Ladkrabang, Thailand | Design extensibility of plate-laminated millimeter-waveguide slot array antennas Jiro Hirokawa (TIT) |
This paper presents the design extensibility of plate-laminated millimeter-waveguide slot array antennas such as high-fr... [more] | |
| AP | 2011-01-21 12:45 |
Saga | Saga Univ. | Design of Sidelobe Suppression in a Double-layer Waveguide Aperture Array Antenna with a Corporate-feed Circuit Yuichi Watarai, Zhang Miao, Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.) AP2010-154 |
A feeding circuit has been designed which can control an aperture distribution for sidelode suppression in the 60GHz dou... [more] | AP2010-154 pp.125-130 |
| AP | 2011-01-21 13:10 |
Saga | Saga Univ. | Circularly-Polarized Aperture Array Antenna with a Corporate-feed Hollow-waveguide Circuit in the Lower Layer Yohei Miura (JRC/Tokyo Inst. of Tech.), Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.), Kazufumi Igarashi, Goro Yoshida (JRC) AP2010-155 |
We have developed the double-layer corporate-feed waveguide slot array with more than 32dBi gain and about 80% antenna e... [more] | AP2010-155 pp.131-136 |
| AP, SAT (Joint) |
2010-07-21 15:15 |
Hokkaido | Kitami Inst. Tech. | Design of a 45-degree Linearly-polarized Hollow-waveguide Slot Two-dimensional Array Antenna with a Full-corporate-feed Circuit in the Lower Layer Takashi Tomura, Yohei Miura, Miao Zhang, Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.) AP2010-47 |
We propose a 45-degree linearly-polarized configuration, placing inclined slots on a double-layer full-corporate-feed ho... [more] | AP2010-47 pp.53-58 |
| AP | 2009-10-08 10:15 |
Shizuoka | Shizuoka University | Bandwidth Enhancement of a Double-layer Corporate-feed Hollow-waveguide Slot Array Antenna in 60 GHz-Band Yohei Miura (Tokyo Inst. of Tech./JRC), Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.), Yuzo Shibuya, Goro Yoshida (JRC) AP2009-106 |
We propose the double-layer hollow-waveguide slot array where a corporate-feed circuit is arranged on the lower layer to... [more] | AP2009-106 pp.19-24 |
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