Safety Aspects of People Exposed to Ultra Wideband Radar Fields

The safety aspects of people exposed to the field emitted by ultra wideband (UWB) radar, operating both in the spatial environment and on ground, for breath activity monitoring are analyzed. The basic restrictions and reference levels reported in the ICNIRP safety guideline are considered, and the compliance of electromagnetic fields radiated by a UWB radar with these limits is evaluated. First, simplified analytical approaches are used; then, both a 3-dimensional multilayered body model and an anatomical model of the head have been used to better evaluate the electromagnetic absorption when a UWB antenna is placed in front of the head. The obtained results show that if the field emitted by the UWB radar is compliant with spatial and/or ground emission masks, then both reference levels and basic restrictions are largely satisfied.

[1]  Mauro Feliziani,et al.  Safety Assessment of UWB Radio Systems for Body Area Network by the ${\rm FD}^{2}{\rm TD}$ Method , 2010, IEEE Transactions on Magnetics.

[2]  James Taylor,et al.  The Micropower Impulse Radar , 2000 .

[3]  Paolo Bernardi,et al.  A circuit model of an ultra wideband impulse radar system for breath‐activity monitoring , 2012 .

[4]  A. Ahlbom.  Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz) , 1998 .

[5]  国際非電離放射線防護委員会.  ICNIRP statement on the "Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz)". , 2009, Health physics.

[6]  M J Ackerman,et al.  The Visible Human Project , 1998, Proc. IEEE.

[7]  P. Russo,et al.  Radiated emission of breath monitoring system based on UWB pulses in spacecraft modules , 2012, 2012 ESA Workshop on Aerospace EMC.

[8]  H. Schumacher,et al.  FCC compliant 3.1-10.6 GHz UWB Pulse Radar System using Correlation Detection , 2007, 2007 IEEE/MTT-S International Microwave Symposium.

[9]  J. R. Andrews,et al.  UWB signal sources, antennas and propagation , 2003, 2003 IEEE Topical Conference on Wireless Communication Technology.

[10]  G. Ziegelberger,et al.  ICNIRP STATEMENT ON EMF-EMITTING NEW TECHNOLOGIES , 2008, Health physics.

[11]  J. Herbertz.  Comment on the ICNIRP guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz) , 1998, Health physics.

[12]  Lawrence J. DeLucas,et al.  International space station , 1996 .

[13]  R M Morey,et al.  Response to FCC 98-208 notice of inquiry in the matter of revision of part 15 of the commission's rules regarding ultra-wideband transmission systems , 1998 .

[14]  Qiong Wang,et al.  SA/SAR analysis for multiple UWB pulse exposure , 2008, 2008 Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility.

[15]  E. M. Staderini,et al.  UWB radars in medicine , 2002 .

[16]  Niels Kuster,et al.  The Virtual Family—development of surface-based anatomical models of two adults and two children for dosimetric simulations , 2010, Physics in medicine and biology.

[17]  Reilly Jp.  Comments concerning "Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz)". , 1999 .

[18]  Gholamreza Moradi,et al.  Design of UWB Antennas to Monitor Cardiac Activity , 2011 .