Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Hirokazu Sawada"'
Autor:
Masayuki Shirakawa, Rei Furukawa, Gilbert Ching, Kenshi Horihata, Yukiko Kishiki, Hirokazu Sawada, Azril Haniz, Takeshi Matsumura, Homare Murakami, Fumihide Kojima
Publikováno v:
IEEE Access, Vol 12, Pp 59007-59017 (2024)
To simulate radio propagation in a dynamic indoor environment such as a factory operating with moving people and automated guided vehicles (AGV), we devised a technique to determine shielding losses by moving objects based on ray tracing. For a movin
Externí odkaz:
https://doaj.org/article/3be1be409f6c4a9e9507c9a81fee2005
Publikováno v:
IEEE Access, Vol 11, Pp 138215-138228 (2023)
This paper presents a novel method for estimating received signal strength (RSS) in indoor radio propagation using a deep learning approach. The proposed method utilizes a training dataset comprised of imitated real-world indoor environments and radi
Externí odkaz:
https://doaj.org/article/0ec76d8567b0436a96e77c4ea150cf81
Publikováno v:
The Journal of Engineering, Vol 2022, Iss 1, Pp 34-43 (2022)
Abstract A wideband planar antenna, which is composed of a ground plate and a strip surrounding the plate, is proposed. Wideband impedance matching with fractional bandwidth over 130% is achieved by making the distance between the strip and the groun
Externí odkaz:
https://doaj.org/article/6fa58a1280a24e9186613aef9e6dd8ae
Publikováno v:
CHROMATOGRAPHY. 44:33-37
Autor:
Masayuki Shirakawa, Rei Furukawa, Gilbert Ching, Yukiko Kishiki, Hirokazu Sawada, Takeshi Matsumura, Fumihide Kojima
Publikováno v:
IEICE Communications Express. 11:596-600
Publikováno v:
2023 17th European Conference on Antennas and Propagation (EuCAP).
Autor:
Hirokazu Sawada, Takeshi Matsumura, Keizo Inagaki, Atsushi Kanno, Katsumi Fujii, Jerdvisanop Chakarothai, Norihiko Sekine, Akifumi Kasamatsu, Hiroyo Ogawa
Publikováno v:
2023 17th European Conference on Antennas and Propagation (EuCAP).
Publikováno v:
The Journal of Engineering, Vol 2022, Iss 1, Pp 34-43 (2022)
A wideband planar antenna, which is composed of a ground plate and a strip surrounding the plate, is proposed. Wideband impedance matching with fractional bandwidth over 130% is achieved by making the distance between the strip and the ground plate s
Autor:
Hibiki Tsukada, Naoya Suzuki, Riku Takahashi, Minseok Kim, Hirokazu Sawada, Takeshi Matsumura
Publikováno v:
2022 International Symposium on Antennas and Propagation (ISAP).
Autor:
Takeshi Matsumura, Hirokazu Sawada, Toshiyuki Miyachi, Fumihide Kojima, Hiroaki Harai, Ayaka Sakaguchi, Yoshihisa Nishigori, Hiroshi Harada
Publikováno v:
2022 25th International Symposium on Wireless Personal Multimedia Communications (WPMC).