Antennae Polarization for Effective Transmission of UWB Signal around Human Body

Ultra wideband (UWB) is an emerging technology with promising applications in wireless body area networks (WBANs). Detailed understanding of the propagation mechanism of UWB signal around human body is essential for the development of wearable sensors. However there are currently limited studies describing UWB signal propagation around human body. In this paper, the favorable antennae polarization for effective transmission of signal to receiver is investigated through numerical simulations. The results showed that antennae oriented in perpendicular polarization with respect to body surface provide a lower path loss as compared to horizontal polarization.

[1]  Constantine A. Balanis,et al.  Antenna Theory: Analysis and Design , 1982 .

[2]  R. Michael Buehrer,et al.  The UWB indoor channel: large and small scale modeling , 2006, IEEE Transactions on Wireless Communications.

[3]  A. Wittneben,et al.  UWB signal propagation at the human head , 2006, IEEE Transactions on Microwave Theory and Techniques.

[4]  Debra McKeown,et al.  Ultra-wideband Radio Technology , 2004 .

[5]  Zhi Ning Chen,et al.  UWB characteristics of disc cone antenna , 2005, IWAT 2005. IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials, 2005..

[6]  Debra McKeown,et al.  Ultra-Wideband Radio Technology: Siwiak/Ultra-Wideband , 2005 .

[7]  Bin Luo,et al.  Small-Scale Transmission Statistics of UWB Signals for Body Area Communications , 2006, IEEE Vehicular Technology Conference.

[8]  K. Fujii,et al.  A study on the receiving signal level in relation with the location of electrodes for wearable devices using human body as a transmission channel , 2003, IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450).

[9]  Masaharu Takahashi,et al.  Study on the Transmission Mechanism for Wearable Device Using the Human Body as a Transmission Channel , 2005, IEICE Trans. Commun..

[10]  A. Safaai-Jazi,et al.  Simulation of ultra‐wideband indoor propagation , 2004 .