"Naotake Yamamoto,Taichi Sasaki,Atsushi Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada,Toshiyuki Maeyama","A Study on Path Loss Prediction Formula for IoT wireless system close to Concrete Ceiling with Flat Surface in 920MHz band","IEICE Technical Committee on Antennas and Propagation","IEICE Technical Report",,"Vol. 121","No. 126","pp. 49-54",2021,July "Yuya Arakawa,Hiro Shimada,Toshiyuki Maeyama,Naotake Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada","A Study of Indoor Propagation Analysis Using the FDTD Method","IEICE Technical Committee on Antennas and Propagation","IEICE Technical Report",,"Vol. 120","No. 248","pp. 107-111",2020,Nov. "Naotake Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada,Toshiyuki Maeyama","Studies of Radio Wave Propagation Characteristics near Concrete Ceiling","IEICE Society Conference",,,,,,2020,Sept. "Naotake Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada,Toshiyuki Maeyama","Studies of Spatial Correlation Characteristics near Indoor Construction Materials","2020 IEICE General Conference",,,,,,2020,Mar. "Hiro Shimada,Toshiyuki Maeyama,Naotake Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada","Propagation Characteristics in Large-Scale Indoor Space","2020 IEICE General Conference",,,,,,2020,Mar. "Yuya Arakawa,Hiro Shimada,Toshiyuki Maeyama,Naotake Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada","A study of Propagation Analysis in T-junction Model","2020 IEICE General Conference",,,,,,2020,Mar. "Hiro Shimada,Toshiyuki Maeyama,Naotake Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada","Study of Propagation Prediction in Large-scale Indoor Environment","AIJ Workshop on Architecture Electromagnetic Environment",,,,,,2020,Jan. "Naotake Yamamoto,Tetsuya Hishikawa,Kentaro Saito,Jun-ichi Takada,Toshiyuki Maeyama","金属製天井オフィスを想定した簡易モデルにおける920MHz帯のFDTD法とレイトレース法による電波伝搬解析","電子情報通信学会ソサイエティ大会",,,,,,2019,Sept.