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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP (2nd) |
2024-01-08 - 2024-01-10 |
Overseas | EPU, Hanoi | Decoupling Design of ±45° Polarization Patch Antenna Using Bridge and Slot Ryoto Ogushi, Hiroyuki Arai (Yokohama National Univ.) |
In this paper, decoupling method using slots and bridges is proposed for patch antennas. one significant challenge is th... [more] | |
| AP (2nd) |
2024-01-08 - 2024-01-10 |
Overseas | EPU, Hanoi | Sampling Points Reduction in Phase-less Spherical Near Field Takaharu Nakase, Hiroyuki Arai (Yokohama National Univ.) |
his paper presents sampling points reduction in a Far-Field estimation method for a small low-gain antenna measured by p... [more] | |
| AP | 2023-02-17 16:25 |
Miyagi | Tohoku University, Aobayama Campus (Primary: On-site, Secondary: Online) |
A Reflection-Type Phase Shifter Using Magic-T and Anti-Phase Reflection Loads Jo Tamura, Hiroyuki Arai (Yokohama Natl. Univ.)  AP2022-232 |
[more] | AP2022-232 pp.194-199 |
| AP, WPT (Joint) |
2023-01-19 09:50 |
Hiroshima | Hiroshima Institute of Technology (Primary: On-site, Secondary: Online) |
Scanning Range Expansion by Reflectarray Satoshi Sugaya, Hiroyuki Arai (Yokohama National Univ.) AP2022-177 |
[more] | AP2022-177 pp.1-5 |
| AP, WPT (Joint) |
2023-01-19 15:20 |
Hiroshima | Hiroshima Institute of Technology (Primary: On-site, Secondary: Online) |
Decoupling design and measurement of quad polarization antenna with dual-layer structure Shota Takato, Hiroyuki Arai (Yokohama National Univ.) AP2022-186 |
This study presents a design to decouple a quad-polarization antenna element. It consists of a bottom patch for orthogon... [more] | AP2022-186 pp.51-56 |
| RCS, AP, UWT (Joint) |
2022-11-15 11:00 |
Fukuoka | Kyushu University, and Online (Primary: On-site, Secondary: Online) |
Channel Capacity Evaluation of Sector Antennas for a 28GHz Band Indoor Base Station by their Directivity Shota Matsumoto, Arai Hiroyuki (Yokohama National Univ.), Yuki Inoue, Yasuko Kimura (NTT DOCOMO) AP2022-150 |
The propagation loss of indoor-to-outdoor communications is very large at high frequencies. Therefore, we consider an in... [more] | AP2022-150 pp.18-23 |
| AP | 2022-10-19 09:30 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Design of broadband patch antennas using metasurfaces Naoto Tomiyama, Jo Tamura, Satoshi Sugaya, Hiroyuki Arai (Yokohama National Univ.) AP2022-96 |
[more] | AP2022-96 pp.11-13 |
| AP | 2022-10-19 09:30 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Sampling Points Reduction in Over The Air Takaharu Nakase, Yusuke Mitsui, Hiroyuki Arai (YNU) AP2022-104 |
This paper presents reduction of sampling points in Over the Air (OTA) test. OTA test conduct is problematic to take a l... [more] | AP2022-104 pp.44-46 |
| AP | 2022-10-19 12:20 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Decoupling design of quad polarization patch antenna using neutralization bridge Ryoto Ohgushi, Shota Takato, Hiroyuki Arai (Yokohama National Univ.) AP2022-116 |
When antennas are used in a small area, there is a problem that the mutual coupling between the antennas becomes large. ... [more] | AP2022-116 pp.91-96 |
| AP | 2022-10-19 12:20 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Evaluation of Digital-to-RF Upconversion Using Harmonic Images of DAC Output by Simulation Sho Sarukawa, Hiroyuki Arai (Yokohama National Univ.) AP2022-124 |
In this paper, we performed simulation of digital-to-RF upconversion using harmonic images of DAC output and evaluated t... [more] | AP2022-124 pp.122-124 |
| AP, MW (Joint) |
2022-09-14 12:00 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
A Study on Low Side-lobes Level of Yagi-Uda Antenna Yasuko Kimura, Yuki Inoue (NTT DOCOMO), Tomoyuki Soga, Makoto Mizumura (Nihon Dengyo Kosaku), Hiroyuki Arai (Yokohama National Univ.) AP2022-74 |
[more] | AP2022-74 pp.17-21 |
| AP, MW (Joint) |
2022-09-15 14:15 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
Propagation experiment using 28GHz multi-sector antenna for indoor base station Yuki Inoue, Yasuko Kimura (NTT DOCOMO), Hiroyuki Arai (Yokohama National Univ.) AP2022-80 |
More higher frequency band will be used in Beyond 5G or 6G mobile communication system. To cover the area of indoor envi... [more] | AP2022-80 pp.50-55 |
| AP, MW (Joint) |
2022-09-16 16:15 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
A Wideband Reflection-Type Phase Shifter Using Magic-T Jo Tamura, Hiroyuki Arai (Yokohama Natl. Univ.) AP2022-91 |
[more] | AP2022-91 pp.110-114 |
| AP (2nd) |
2022-06-10 13:15 |
Hokkaido | Nemuro General Cultural Center (Primary: On-site, Secondary: Online) |
The radiation characteristics estimation by using the spherical near field amplitude of a single surface. Yusuke Mitsui, Hiroyuki Arai (Yokohama National Univ.) |
[more] | |
| AP | 2022-05-19 13:50 |
Hyogo | Kobe Port Oasis (Primary: On-site, Secondary: Online) |
28GHz multi-sector antenna for indoor base station Hiroyuki Arai, Ryota Sinozaki (Yokohama Natl. Univ.), Yuki Inoue, Yasuko Kimura (NTT DOCOMO, INC.) AP2022-17 |
[more] | AP2022-17 pp.35-38 |
| AP | 2022-04-15 10:50 |
Yamagata | Yamagata Syokuryo Kaikan (Primary: On-site, Secondary: Online) |
Investigation of Accuracy Improvement Using Null-Steering Antennas for AoA Estimation Jo Tamura, Hiroyuki Arai (Yokohama Natl. Univ.) AP2022-4 |
[more] | AP2022-4 pp.19-23 |
| AP | 2022-03-10 11:20 |
Online | Online | A Study on Reducing the Number of Measurement Points Required for Estimating the Radiation Characteristics of Antennas in OTA Tests Yusuke Mitsui, Arai Hiroyuki (Yokohama National Univ.) AP2021-184 |
In recent years, Over the Air (OTA) test has been attracting attention to evaluate the wireless capabilities of the IoT ... [more] | AP2021-184 pp.17-20 |
| AP | 2022-03-10 13:35 |
Online | Online | Scanning Range Expansion and Gain Enhancement of Array Antenna by Dielectric Lens Satoshi Sugaya, Hiroyuki Arai (Yokohama National Univ.) AP2021-187 |
[more] | AP2021-187 pp.30-33 |
| AP | 2022-02-18 14:30 |
Online | Online | Comparison of major decoupling methods for two ports antenna Shota Takato, Hiroyuki Arai (Yokohama National Univ.) AP2021-176 |
[more] | AP2021-176 pp.99-103 |
| AP | 2022-02-18 15:20 |
Online | Online | Microwave Circuit Integrated Uniplanar Antenna Using Hybrid Beam-Forming for Angle-of-Arrival Estimation Tamura Jo, Arai Hiroyuki (Yokohama Natl. Univ.) AP2021-178 |
[more] | AP2021-178 pp.110-115 |
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