Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: In-body path loss models for implants in heterogeneous human tissues using implantable slot dipole conformal flexible antennas | Kurup et al. EURASIP Journal on Wireless Communications and Networking 2011 2011 51 http content 2011 1 51 o EURASIP Journal on Wireless Communications and Networking a SpringerOpen Journal RESEARCH Open Access In-body path loss models for implants in heterogeneous human tissues using implantable slot dipole conformal flexible antennas 1 2 f I 1 1 3 3 Divya Kurup Maria Scarpello Gunter Vermeeren Wout Joseph Kristof Dhaenens Fabrice Axisa Luc Martens1 Dries Vande Ginste2 Hendrik Rogier2 and Jan Vanfleteren3 Abstract A wireless body area network WBAN consists of a wireless network with devices placed close to attached on or implanted into the human body. Wireless communication within a human body experiences loss in the form of attenuation and absorption. A path loss model is necessary to account for these losses. In this article path loss is studied in the heterogeneous anatomical model of a 6-year male child from the Virtual Family using an implantable slot dipole conformal flexible antenna and an in-body path loss model is proposed at GHz with application to implants in a human body. The model is based on 3D electromagnetic simulations and is compared to models in a homogeneous muscle tissue medium. Introduction A wireless body area network WBAN is a network consisting of nodes that communicate wirelessly and are located on or in the body of a person. These nodes form a network that extends over the body of the person. Depending on the implementation the nodes consist of sensors and actuators placed in a star or multihop topology 1 . Applications of WBANs include medicine sports military and multimedia which make use of the freedom of movement provided by the WBAN. As WBAN facilitates unconstrained movement amongst users it has brought a revolutionary change in patient monitoring and health care facilities. Active implants placed within the human body lead to better and faster diagnosis thus improving the patient s quality of life. .
