Title :
A Compact UWB Antenna for On-Body Applications
Author :
Chahat, Nacer ; Zhadobov, Maxim ; Sauleau, Ronan ; Ito, Koichi
Author_Institution :
Inst. of Electron. & Telecommun. of Rennes (IETR), Univ. of Rennes 1, Rennes, France
fDate :
4/1/2011 12:00:00 AM
Abstract :
A new compact planar ultrawideband (UWB) antenna designed for on-body communications is presented. The antenna is characterized in free space, on a homogeneous phantom modeling a human arm, and on a realistic high-resolution whole-body voxel model. In all configurations it demonstrates very satisfactory features for on-body propagation. The results are presented in terms of return loss, radiation pattern, efficiency, and E-field distribution. The antenna shows very good performance within the 3-11.2 GHz range, and therefore it might be used successfully for the 3.1-10.6 GHz IR-UWB systems. The simulation results for the return loss and radiation patterns are in good agreement with measurements. Finally, a time-domain analysis over the whole-body voxel model is performed for impulse radio applications, and transmission scenarios with several antennas placed on the body are analyzed and compared.
Keywords :
antenna radiation patterns; body area networks; ultra wideband antennas; ultra wideband communication; E-field distribution; IR-UWB systems; antenna radiation pattern; body-area networks; compact UWB antenna; frequency 3 GHz to 11.2 GHz; high-resolution whole-body voxel model; homogeneous phantom modeling; human arm; impulse radio applications; on-body applications; radiation efficiency; return loss; time-domain analysis; transmission scenarios; ultrawideband antenna; Antenna measurements; Antenna radiation patterns; Phantoms; Reflection; Ultra wideband antennas; Body-area network (BAN); body-centric wireless communications; compact antenna; printed antenna; ultrawideband (UWB) antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2109361
