Online edition: ISSN 2432-6380
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AP2025-150
Design of Reconfigurable Convex-Type Metasurface Reflectors for 3D Beam Steering
Ayaka Sato, Taisei Urakami (NIT, Kagawa College), Tamami Maruyama (Hiroshima Inst. of Tech.), Akira Ono (NIT, Kagawa College), Na Chen (Univ. of Science and Tech. Beijing/NAIST), Minoru Okada (NAIST)
pp. 1 - 6
AP2025-151
Design of Conformal RIS Using Flexible Printed Circuits with Air Gaps
Kanata Okada, Taisei Urakami (NIT, Kagawa College), Tamami Maruyama (Hiroshima Inst. of Tech.), Akira Ono (NIT, Kagawa College), Na Chen (Univ. of Science and Tech. Beijing/NAIST), Minoru Okada (NAIST)
pp. 7 - 12
AP2025-152
Experimental Evaluation of Incident and Reflection Angle Error Estimation for Intellignent Reflecting Surface via Two-Step Beam Scanning
Keita Ueno, Nao Kubota, Masaki Saito, Ryuto Kamikawana, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Takuya Ohto, Takahiro Hayashi (KDDI Research, Inc.), Mitsutaka Okita (JDI)
pp. 13 - 18
AP2025-153
Experimental Evaluation of Frequency Characteristics of Intelligent Reflecting Surface
Mariko Ishikawa, Yutaro Tanaka, Ryohei Chiba, Miyako Takemura, Ryuhei Hibi, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Takumi Yoneda, Tomoki Murakami (NTT)
pp. 19 - 24
AP2025-154
Modeling of Spatio-Temporal Propagation Path near Human Body in 300 GHz Band in Outdoor Environment
Keita Kuga, Hiroaki Nakabayashi (CIT)
pp. 25 - 29
AP2025-155
Long-term Trends in Rainfall Extreme Data in Japan [V]
-- Predicting the Future Trend of Rain Attenuation in Radio Communication Systems --
Yoshio Karasawa
pp. 30 - 35
AP2025-156
A Study on Active-Element Allocation Using a Genetic Algorithm for IRS-Assisted Systems
Taisei Miura, Norisato Suga (SIT)
pp. 36 - 41
AP2025-157
IRS Channel Estimation in Near-Field Environments Using Gaussian Process Regression
Itsuki Koido, Norisato Suga (SIT)
pp. 42 - 47
AP2025-158
CDL-Based Propagation Model of Near-Field of Electrically Large RIS
Hiromi Matsuno, Tatsuya Nagao, Satoshi Ito, Takahiro Hayashi, Yoshiaki Amano (KDDI Research)
pp. 48 - 53
AP2025-159
[Invited Talk]
Signal transmission/processing systems utilizing nanostructures and topology
Keita Funayama, Kenichi Yatsigi, Hiroya Tanaka (TCRDL), Jun Hirotani (Kyoto Univ.), Yutaka Ohno (Nagoya Univ.), Yukihiro Tadokoro, Hideo Iizuka (TCRDL)
p. 54
AP2025-160
A consideration on a single-layer dual-polarized dual-band and wideband ring planar antenna fed by two L-probes with an X-shaped inner element
Terutoshi Goto, Yuichi Kimura (Saitama Univ.)
pp. 55 - 59
AP2025-161
A Polarization- and Beam-Reconfigurable Patch Array Antenna Using Switchable Parasitic Lines
Ren Sonoda, Maodudul Hasan, Masaya Tamura (TUT)
pp. 60 - 62
AP2025-162
Scattering Suppression of Metal Square Rod with Mantle Cloak Using Strip Conductors
Samu Fujisaki, Hiroshi Hashiguchi, Naobumi Michishita (National Defense Academy), Kiyoshi Sakimoto, Teruki Miyazaki, Masoto Tadokoro (The Yokohama Rubber Co., Ltd.)
pp. 63 - 66
AP2025-163
Generalized propagation fluctuation model of the sky-cell in 3D cell structure for mobile communications
-- An extension of the Nakagami-Rice model and its measurement method --
Teruya Fujii, Keita Iwasa (Science Tokyo)
pp. 67 - 72
AP2025-164
Introduction of 400MHz narrowband LoRa communication system effective in hilly and mountainous areas
Yukio Nakata (DKK Co., Ltd), Masahiro Fukumoto (Kochi University of Technology), Tadashige Iwao (Kochi Univ.)
pp. 73 - 77
AP2025-165
Comparative Experiment on the Reception Performance of Private LoRa Wireless Modules
Kento Era, Shinji Tsuzuki (Ehime Univ), Yukio Nakata (DKK Co., Ltd)
pp. 78 - 82
AP2025-166
Design and Measurement for Large Transparent Metasurface Reflectors in Millimeter-Band Wave
Sho Yoshida, Sangmun Lee, Toshiki Sayama, Osamu Kagaya (AGC), Takumi Yoneda, Tomoki Murakami (NTT), Dan Mohri, Satoshi Suyama (NTT Docomo)
pp. 83 - 88
AP2025-167
[Encouragement Talk]
Evaluation of Control Delay in Dynamic RIS Tracking Control Using User Position Information
Takumi Yoneda, Tomoki Murakami, Riichi Kudo, Tomoaki Ogawa (NTT)
pp. 89 - 93
AP2025-168
[Special Talk]
Development of Liquid Crystal-Based Reflectarray for Reducing Path Loss of Millimeter-wave
Qiang Chen (Tohoku Univ.)
pp. 94 - 95
AP2025-169
Characterization of RF-DC Array Differential Rectennas Considering Feeding Circuit Losses for High-Power Wireless Power Transfer
Yusuke Cho, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.)
pp. 96 - 101
AP2025-170
Measurement Results of a Low Axial-ratio/Sidelobe Array Antenna with Stripline-fed Slot-coupled Cross-shaped Patch Elements
Takashi Uno, Takashi Maruyama, Takafumi Yokoe, Tai Tanaka, Toru Takahashi (MELCO)
pp. 102 - 107
AP2025-171
Field evaluation of localization algorithm using mm-wave radar in non-line of sight environments
Takayuki Nakanishi, Dai Sasakawa, Yasuhiro Nishioka, Kengo Nishimoto, Toru Takahashi (MELCO)
pp. 108 - 112
Note: Each article is a technical report without peer review, and its polished version will be published elsewhere.