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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, RCS (Joint) |
2023-11-15 10:25 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Broadband 300-GHz-band post-wall waveguide corporate feed antenna by eigenmode analysis Shohei Ogura, Takashi Tomura (Tokyo Tech)  AP2023-130 |
We report the design results of a 300GHz band post-wall waveguide antenna. The previously proposed model did not provid... [more] |
AP2023-130 pp.7-10 |
| AP, RCS (Joint) |
2023-11-15 13:25 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Feeding design of a full-corporate feed radial line slot antenna with isoflux radiation pattern Gen Nakayama, Takashi Tomura (Titech) AP2023-134 |
A radial line slot antenna with a corporate feeding structure is proposed as a broadband Ka-band isoflux radiation patte... [more] | AP2023-134 pp.27-30 |
| AP, MW (Joint) |
2022-09-16 16:40 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
Design of Feed Circuit for Post-Wall Waveguide Slot Array Antenna Irradiating Square Region Yuto Katsura, Takashi Tomura, Jiro Hirokawa (Tokyo Tech) AP2022-92 |
We design a waveguide slot array antenna with a square irradiation area that enables communication to all four corners f... [more] | AP2022-92 pp.115-118 |
| AP | 2021-10-07 14:25 |
Online | Online | [Poster Presentation]
A Study on Antenna Efficiency and Bandwidth of Terahertz Band Partially Parallel-Fed Waveguide Slot Arrays Yoshiki Hara, Jiro Hirokawa, Takashi Tomura (Tokyo Tech) AP2021-90 |
In the corporate feed of a waveguide slot array antenna, each element is fed with an equal-length line, which increases ... [more] | AP2021-90 pp.82-88 |
| 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 |
| AP | 2018-12-13 13:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Design of a Perpendicular-corporate Feed in a Four-layer Parallel-plate 45-degree Polarization Slot Array Antenna Hisanori Irie, Takashi Tomura, Jiro Hirokawa (TITECH) AP2018-145 |
This paper presents the design of a perpendicular-corporate feed in a four-layer parallel-plate 45-degree polarization s... [more] | AP2018-145 pp.1-4 |
| 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 | 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, 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] | |
| RCS, AP (Joint) |
2016-11-24 10:45 |
Kyoto | Kyoto International Community House | Feasibility of Perpendicular-Corporate Feed for a Multi-Layered Parallel-Plate Slot Array Antenna Hisanori Irie, Jiro Hirokawa (TITECH) AP2016-108 |
This paper presents the feasibility of perpendicular-corporate feed for a multi-layered parallel-plate slot array antenn... [more] | AP2016-108 pp.7-10 |
| 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 |
| AP (2nd) |
2014-01-10 16:50 |
Overseas | Le Quy Don Technical University (Hanoi, Vietnam) | Fabrication of a double-layer corporate-feed waveguide slot array antenna by powder metal laser process Jiro Hirokawa, Satoshi Ito, Satoshi Suetsugu, Miao Zhang, Makoto Ando (Tokyo Inst. of Tech.) |
The double-layer corporate-feed hollow waveguide slot array antenna with 12x16 elements is fabricated by the powder meta... [more] | |
| RCS, AP (Joint) |
2013-11-20 14:50 |
Shimane | Matsue Terrsa | Single-layer Corporate-feed Slot Array Antenna using Hollow Rectangular Coaxial Line Makoto Sano, Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.) AP2013-102 |
A corporate-feed hollow-waveguide slot array has two waveguide layers, because the width of the broad wall of a hollow r... [more] | AP2013-102 pp.13-18 |
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