アンテナ工学 マイクロ波の医療応用 人体と電磁波との相互影響評価 医用電磁波工学 がん治療用アンテナ 移動通信用アンテナ 人体ファントム 人体通信 Antenna Engineering Medical Applications of Microwaves Estimation of Interaction Between Human Body and Electromagnetic Waves
,Antenna Engineering Medical Applications of Microwaves Estimation of Interaction Between Human Body and Electromagnetic Waves
Ning Guan   Hirotaka Furuya   Kuniharu Himeno   Kenji Goto   Koichi Ito   
IEICE TRANSACTIONS ON COMMUNICATIONS E90B(9) 2219-2224 2007年9月
The radiation characteristics of a monopole antenna that consists of one-half of a bow-tie dipole antenna, made of optically transparent conductive thin film and mounted above a ground plane, are investigated. The antenna's performance is measured...
Hirotaka Furuya   Ning Guan   Kuniharu Himeno   Koichi Ito   
IEICE TRANSACTIONS ON COMMUNICATIONS E90B(9) 2225-2229 2007年9月
In recent years, wireless communications systems such as wireless LAN, Bluetooth, etc. are being rapidly adopted. As the antennas used in wireless communications systems are usually installed in small mobile devices, it is demanded that the volume...
Takanori Noro   Yasuhiro Kazama   Masaharu Takahashi   Koichi Ito   
IEICE TRANSACTIONS ON COMMUNICATIONS E90B(9) 2271-2279 2007年9月
In this paper, small sized arrays with a few elements are investigated. The antenna diameter is assumed to be less than 3 lambda(o). The focus of this paper is to compare the gain characteristics of a triangle arrangement with these of a uniform a...
Katsuyuki Fujii   Masaharu Takahashi   Koichi Ito   
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 55(7) 2080-2087 2007年7月
Recently, wearable devices which use the human body as a transmission channel have been developed. However, there has been a lack of information related to the transmission mechanism of such devices in the physical layer. Electromagnetic communica...
Toshimitsu Tanaka   Tamotsu Houzen   Masaharu Takahashi   Koichi Ito   
IEICE TRANSACTIONS ON COMMUNICATIONS E90B(3) 621-629 2007年3月
In this paper, the authors propose a circularly polarized printed antenna combining a slot array antenna and a patch antenna, with dual-band operation. The proposed antenna has good isolation performance, is compact, and has simple configuration. ...