Improved method for evaluating antenna performance in mobile environment with consideration of polarization and phase. - Yoichi Nakagawa; Masahiro Mimura; Kentaro Miyano; Yoshio Koyanagi; Kyohei Fujimoto (IEEE Trans. Veh. Technol., 2003)

Characteristics of Built-In Folded Monopole Antenna for Handsets. - Shogo Hayashida; Tomoki Tanaka; Hisashi Morishita; Yoshio Koyanagi; Kyohei Fujimoto (IEICE Trans. Commun., 2005)