IEICE Technical Report

Online edition: ISSN 2432-6380

Antennas and Propagation

Workshop Date : 2026-01-21 - 2026-01-23 / Issue Date : 2026-01-14

AP2025-176
Design of Mechanical Beam Steering Transmitarray Antenna with Gaussian Beam Phase Distribution Illumination
Gen Nakayama, Takashi Tomura (Science Tokyo)
pp. 1 - 6

AP2025-177
A consideration on a single-layer dual-polarized dual-band and wideband planar antenna fed by two orthogonal L-probes with outer separated elements
Tomoki Matsushima, Yuichi Kimura (Saitama Univ.)
pp. 7 - 11

AP2025-178
Prototype Evaluation of Switching Characteristics of Dual-Band Polarization-Switchable Stacked Microstrip Antennas
Hiyori Yamashita, Eisuke Nshiyama, Ichihiko Toyoda (Saga Univ.)
pp. 12 - 17

AP2025-179
Estimating the angle of arrival using the MUSIC method in conjunction with an electromagnetic field simulator
Fumitaka Funayama, Qiaowei Yuan (Tohoku Inst. of Technology)
pp. 18 - 22

AP2025-180
Direction-of-Arrival Estimation with a Single Feed and a Mechanically Rotating Lens in the Sub-THz Band
Hibiki Shiiba (Kumamoto Univ.), Withawat Withayachumnankul (Univ. of Adelaide), Takeshi Fukusako (Kumamoto Univ.)
pp. 23 - 28

AP2025-181
[Invited Lecture] Path Loss Estimation under Low-Sampling Conditions Using the Diffusion Model RadioDiff
Yuuki Tachioka (Denso IT Laboratory)
pp. 29 - 34

AP2025-182
[Invited Lecture] A Study on the Correction of Propagation Environment Maps Using Generative Models
Satoshi Iwasaki (KKE), Miyuki Hirose (KIT), Kenshi Horihata, Yukiko Kishiki (KKE)
pp. 35 - 40

AP2025-183
[Invited Lecture] Examination on Spatial Interpolation of Propagation Loss Based on the Number of Diffractions
Shinichi Ichitsubo
pp. 41 - 45

AP2025-184
[Invited Lecture] Accuracy Improvement of Kriging Interpolation Using a Ray-tracing-derived Variogram
Hiroto Yamada, Hisato Iwai, Sinsuke Ibi (Doshisha Univ.)
pp. 46 - 51

AP2025-185
[Invited Lecture] A Hybrid Approach for Radio Propagation Prediction Based on Open-Source Ray-Tracing Analysis and Deep Learning
Sho Kitano, Shoma Tanaka (SoftBank Corp.)
pp. 52 - 57

AP2025-186
[Invited Lecture] Area-Wide Spatial Interpolation Modeling of Propagation Loss Using Sample Data -- A Ray-Tracing-Based Approach with Parameter Optimization --
Takeshi Kido, Tetsuro Imai (TDU), Miyuki Hirose (Kyutech)
pp. 58 - 61

AP2025-187
[Invited Lecture] Spatial Interpolation of Path Loss Using Deep Learning Based on Domain Adaptation from Physical Simulation to Real Environment
So Okada, Kazuki Yuasa, Koichi Ichige (Yokohama National Univ.), Tatsuya Nagao, Hiroki Aoki, Takahiro Hayashi, Yoshiaki Amano (KDDI Research, Inc.)
pp. 62 - 67

AP2025-188
[Invited Lecture] Environment-Specific Deep Learning Models for Propagation Loss Prediction Using Input Data Interpolation and Line-of-Sight Information
Xiaoxi Ren, Roma Tsutsumi, Hiroyuki Morikawa, Yoshiaki Narusue (Univ. of Tokyo)
pp. 68 - 72

AP2025-189
LOS Probability Estimation Method considering the Fresnel Zone in Higher-Frequency Band under Human Shadowing Environments
Minori Kuno, Naoki Kita (Tokyo Denki Univ.), Wataru Yamada (NTT)
pp. 73 - 78

AP2025-190
Analysis of Area-Based Radio Propagation Characteristics at 169 MHz
Miu Funatsu, Kitazawa Shoichi (MuIT)
p. 79

AP2025-191
Radio Propagation Characteristics in Free-Space and Suburban Environments at 5.7 GHz
Yuto Ogasawara, Shoichi Kitazawa (MuIT)
p. 80

AP2025-192
Proposal of Propagation Loss Model for Base Station in the Sky Covering Areas from Urban to Open Area
Shinichi Ichitsubo
pp. 81 - 86

AP2025-193
Design of a Dual-polarized Design of Omnidirectional Antenna Using a Super-elliptical Waveguide Bend Mode Converter and Multi-Stage Tapered Waveguides
Renshi Funabiki, Jiro Hirokawa, Takashi Tomura (Science Tokyo)
pp. 87 - 91

AP2025-194
Wideband Design of Double-Layer Corporate-Feed Waveguide 64x64-Slot Array Antenna
Hinata Ishikawa, Jiro Hirokawa, Takashi Tomura (Science Tokyo)
pp. 92 - 95

AP2025-195
Wideband Reflection-Canceling Design for Post-Wall Waveguide Series-Feed Slot Subarray Antenna for Millimeter-Wave Radar
Hayato Sato, Jiro Hirokawa, Takashi Tomura (Science Tokyo)
pp. 96 - 99

AP2025-196
A Study on Dynamic Control of Relay UAVs in Mobile Communication Systems
Yuta Tamura, Tetsuro Imai (TDU)
pp. 100 - 104

AP2025-197
A Cooperative Multi-UAV RIS-Based Relay System for Mobile Communications
Tetsuro Imai (TDU)
pp. 105 - 110

AP2025-198
Construction of Radio Transmission Lines between Underwater Drones and Ground Stations
Qiang Chen, Sota Mutsuna, Hiroyasu Sato (Tohoku Univ.), Nozomu Ishii (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiaowei Yuan (Tohoku Inst. of Tech.), Hiroshi Yoshida (JAMSTEC)
pp. 111 - 112

AP2025-199
[Tutorial Lecture] An Introduction to Radio Map Construction: Recent Trends and Open Challenges
Koya Sato (UEC)
p. 113

AP2025-200
Heart-Rate Distribution Estimation Method for Massive MIMO Radar Using Mode Filtering Based on Spatiotemporal Singular Value Decomposition
Sotaro Yoshioka, Naoki Honma, Kentaro Murata, Morio iwai, Koichiro Kobayashi (Iwate Univ.)
pp. 114 - 119

AP2025-201
Development of an OAM Transmission Characteristic Analysis Tool Considering Radiation Properties under Lens Mounting Conditions
Takahiro Yokoi, Keizo Cho (CIT)
pp. 120 - 125

AP2025-202
(See Japanese page.)
pp. 126 - 127

AP2025-203
[Invited Lecture] Experimental Evaluation of Beamforming Technology Integrating Wireless Sensing and Wireless Power Transfer in Compliance with Radio Exposure Protection Guidelines
Kentaro Murata, Mao Sekine, Shunto Arai, Naoki Honma (Iwate Univ.)
pp. 128 - 133

AP2025-204
[Invited Lecture] Experimental Evaluation of Microwave Wireless Power Transfer Based on Passive Channel Estimation Method for Multiple Rectennas
Shunto Arai, Kentaro Murata, Naoki Honma (Iwate Univ.)
pp. 134 - 139

AP2025-205
[Invited Lecture] 2.45 GHz Wireless Power Transfer Using Near-field Focusing 1-Bit Reflectarray Antenna
Shota Sueki, Hajime Kondo, Takuma Shido, Shungo Shimizu, Akira Machida (CEC), Hiroyasu Sato, Qiang Chen (Tohoku Univ.)
pp. 140 - 143

AP2025-206
[Invited Lecture] Fundamental Study Aimed at Wireless Power Transfer for Sensing Tools in Machining Processes
Takumi Kanamori, Toyohisa Takano, Suguru Yamagishi, Ichirou Kuwayama (SEI), Naoki Sakai, Kenji Itoh (KIT)
pp. 144 - 149

AP2025-207
[Invited Lecture] A Study of 24GHz RF Beam Wireless Power Transfer -- Loop-Shaped Rectenna Development and WPT test --
Yukio Kaneko, Takanori Okamura, Takashi Kawamura (Sony), Susumu Miura, Noboru Sekino (DKK), Kenji Itoh (KIT)
pp. 150 - 155

AP2025-208
[Invited Lecture] Interference Mitigating Technique for WPT Systems with Carrier-sense
Yuki Tanaka, Hikaru Hamase (Panasonic)
pp. 156 - 160

Note: Each article is a technical report without peer review, and its polished version will be published elsewhere.

The Institute of Electronics, Information and Communication Engineers (IEICE), Japan