Title :
Reactive near-field region radiation of planar UWB antennas close to a dispersive tissue model
Author :
Tuovinen, Tommi ; Berg, Markus ; Yazdandoost, Kamya Yekeh ; Salonen, E. ; Iinatti, Jari
Author_Institution :
Centre for Wireless Commun., Univ. of Oulu, Oulu, Finland
Abstract :
This paper focuses on the radiation properties of planar Ultra Wideband (UWB) antennas in the vicinity of a dispersive layered tissue model through the range of 0-30 mm above the body model surface. Radiation properties are investigated in terms of the realized maximum gain, total antenna efficiency and radiation patterns (the plots of realized gain) at different antenna-body distances. Two planar UWB antennas are simulated in free space in this study and at multiple distances to the tissue model. Results are analyzed and discussed based on the antenna theory. When the operation distance over the boundary of antenna´s reactive field can be used, the performance close to free space can be achieved.
Keywords :
antenna radiation patterns; biological tissues; body area networks; ultra wideband antennas; body model surface; dispersive layered tissue model; dispersive tissue model; planar UWB antenna; radiation pattern; radiation property; reactive field; reactive near-field region radiation; wireless body area network; Antenna radiation patterns; Dipole antennas; Gain; Ultra wideband antennas; Wireless communication; Ultra Wideband (UWB) antenna; Wireless Body Area Network (WBAN) UWB systems; human body effect; near-field region;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2012 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4673-2218-8
Electronic_ISBN :
978-1-4673-2219-5
DOI :
10.1109/LAPC.2012.6403037
