IEICE Technical Report

Online edition: ISSN 2432-6380

Antennas and Propagation

Workshop Date : 2025-04-10 - 2025-04-11 / Issue Date : 2025-04-03

AP2025-1
Study on Target Classification in NLOS using Radio Wave Sensing
Shota Iwasaki, Dai Sasakawa, Makoto Matsuki, Kazunari Kihira, Toru Takahashi, Yoshio Inasawa (MELCO)
pp. 1 - 6

AP2025-2
Experimental Evaluation of Wideband Channel Characteristics at 158 GHz in Indoor Office Environments
Nobuaki Kuno, Koshiro Kitao, Takahiro Tomie, Satoshi Suyama (NTT DOCOMO), Minoru Inomata, Wataru Yamada, Ryotaro Taniguchi (NTT), Michael Millhaem, Tetsuaki Ikoma, Roger Nichols (Keysight)
pp. 7 - 12

AP2025-3
Exploring the Friis Transmission Formula -- Transmission system diagram consisting of transmitting and receiving antennas --
Yoshio Karasawa
pp. 13 - 18

AP2025-4
[Tutorial Lecture] Retrodirective Antenna for the Microwave Power Transmission and Three-dimensional Phased Array Antenna for the Simultaneous Communications with Multple Satellites
Nobuyuki Kaya (WaveArrays)
pp. 19 - 23

AP2025-5
Development of a Radio Wave Sensing System Using a Combination of Radar and CNN/LSTM-Based Machine Learning Models -- Achieving High-Accuracy People Counting with Minimal Training Data --
Tomoya Tanaka, Ryo Yonemoto, Mizuki Funakoshi, Ayumu Yabuki (SoftBank)
pp. 24 - 29

AP2025-6
A consideration on a reflectarray antenna with varactor-loaded single-layer ring microstrip antennas fed by an L-probe
Shogo Yoshida, Yuichi Kimura (Saitama Univ.)
pp. 30 - 34

AP2025-7
[Invited Lecture] Applicability of Quantum Annealing for Vehicular Antenna Optimized Arrangement
Yuika Nakayama, Eisuke Nishiyama (Saga Univ.), Ryo Yamaguchi, Toshiki Hozen, Kazuma Tomimoto (Softbank), Ichihiko Toyoda (Saga Univ.)
pp. 35 - 40

AP2025-8
[Invited Lecture] Characteristics of Near Field to Near Field and Near Field to Far Field Conversion of Antennas for EMI Measurement using FDTD Method
Kyoya Inakawa, Takuji Arima, Toru Uno (TUAT), Takayuki Kubo, Takeshi Ishida (NoiseKen)
pp. 41 - 45

AP2025-9
[Invited Lecture] Mesh-Free Modeling of Two-Dimensional Infinite Periodic Structure Using Green's Function Formalism and Its Application to MoM
Keisuke Konno (Tohoku Univ.), Nozomi Haga (TUT), Jerdvisanop Chakarothai (NICT), Qiang Chen (Tohoku Univ.)
pp. 46 - 51

AP2025-10
[Invited Lecture] Impedance Double Expansion Method -- Application to Circuit Modeling of Undersea Loop Coupler --
Nozomi Haga (Toyohashi Tech.), Jerdvisanop Chakarothai (NICT), Keisuke Konno (Tohoku Univ.)
pp. 52 - 57

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