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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 191  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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 Angle Expansion Method Using 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
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, 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
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, WPT
(Joint)
2022-01-20
09:25
Tottori Kenmin-Fureai-Kaikan
(Primary: On-site, Secondary: Online)
Study on principle and efficiency of through-hole reflector and waveguide conversion structure for millimeter-wave band leaky wave antenna
Wataru Iida, Hiroyuki Arai (YNU) AP2021-135
 [more] AP2021-135
pp.7-10
AP, WPT
(Joint)
2022-01-20
09:50
Tottori Kenmin-Fureai-Kaikan
(Primary: On-site, Secondary: Online)
Consideration of primary radiator for efficiency of reflectarray antenna
Haruna Nagahara, Hiroyuki Arai (Yokohama National Univ.) AP2021-136
In order to improve the efficiency of the reflector array, the types of primary radiators and their arrangement were inv... [more] AP2021-136
pp.11-14
AP
(2nd)
2021-12-02
10:10
Okinawa Miyakojima
(Primary: On-site, Secondary: Online)
Imaging of Electromagnetic-Waves using RoF System Based on Si Photonics Microring Modulator Array
Liucun Li, Hiroyuki Arai, Toshihiko Baba (Yokohama Nat'l Univ.)
We propose an electromagnetic wave imaging radio over fiber system that connects an RF probe sensor array with a microri... [more]
AP
(2nd)
2021-12-02
11:35
Okinawa Miyakojima
(Primary: On-site, Secondary: Online)
Thin AMC substrate by applying square patch with semicircle notch and measurement method
Ryota Shinozaki, Jo Tamura, Hiroyuki Arai (Yokohama National Univ.)
 [more]
AP
(2nd)
2021-12-02
12:00
Okinawa Miyakojima
(Primary: On-site, Secondary: Online)
A study of jitter measurement of ADC at high frequency band and the effect of jitter noise in modulated wave
Hiroyuki Saito, Hiroyuki Arai (Yokohama National Univ.)
In this paper, a simple method of estimating the jitter measurement of ADCs with high frequency bands from the measured ... [more]
 Results 1 - 20 of 191  /  [Next]  
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