Broadband Tissue-Equivalent Phantom for BAN Applications at Millimeter Waves

The extension of body area networks from microwaves to millimeter waves requires to develop experimental phantoms emulating the dielectric properties of human skin for the accurate, reproducible, and well-controlled characterization of wearable antennas, on-body propagation channel, and absorption of the electromagnetic power by the human body. Here we introduce a broadband skin-equivalent semisolid phantom whose composition is optimized to coincide with measured values of the human skin permittivity in the 55-65-GHz range. To confirm the accuracy of this phantom, specific absorption rate measurements are performed at 60 GHz using a temperature-based approach. An excellent agreement between the experimental and numerical results is demonstrated.

[1]  P.S. Hall,et al.  Comparison between two different antennas for UWB on-body propagation measurements , 2005, IEEE Antennas and Wireless Propagation Letters.

[2]  P. S. Hall,et al.  Antennas and propagation for body centric communications , 2006, 2006 First European Conference on Antennas and Propagation.

[3]  S. Alekseev,et al.  Human skin permittivity determined by millimeter wave reflection measurements , 2007, Bioelectromagnetics.

[4]  Koichi Ito,et al.  Development and characteristics of a biological tissue‐equivalent phantom for microwaves , 2001 .

[5]  Q. Wang,et al.  An On-Body Channel Model for UWB Body Area Communications for Various Postures , 2009, IEEE Transactions on Antennas and Propagation.

[6]  L. Akhoondzadeh-Asl,et al.  Printed Yagi–Uda array for on‐body communication channels at 60 GHz , 2011 .

[7]  Yahia M. M. Antar,et al.  Microstrip and printed antennas : new trends, techniques, and applications , 2010 .

[8]  Simon L. Cotton,et al.  Millimeter-wave soldier-to-soldier communications for covert battlefield operations , 2009, IEEE Communications Magazine.

[9]  Kamya Yekeh Yazdandoost.  Antenna for over body surface communication , 2011, Asia-Pacific Microwave Conference 2011.

[10]  Ronan Sauleau,et al.  Complex permittivity of representative biological solutions in the 2–67 GHz range , 2012, Bioelectromagnetics.

[11]  Ronan Sauleau,et al.  Human skin permittivity models for millimetre-wave range , 2011 .

[12]  O. Gandhi,et al.  Absorption of Millimeter Waves by Human Beings and its Biological Implications , 1986 .

[13]  W. Scanlon,et al.  Antennas for Over-Body-Surface Communication at 2.45 GHz , 2009, IEEE Transactions on Antennas and Propagation.

[14]  R. W. Lau,et al.  The dielectric properties of biological tissues: III. Parametric models for the dielectric spectrum of tissues. , 1996, Physics in medicine and biology.

[15]  M. Takahashi,et al.  Characteristics of Cavity Slot Antenna for Body-Area Networks , 2009, IEEE Transactions on Antennas and Propagation.

[16]  Ronan Sauleau,et al.  Millimeter-wave interactions with the human body: state of knowledge and recent advances , 2011, International Journal of Microwave and Wireless Technologies.

[17]  Xianyue Wu,et al.  Substrate integrated waveguide Yagi-Uda antenna , 2010 .

[18]  L. Vallozzi,et al.  Aperture-Coupled Patch Antenna for Integration Into Wearable Textile Systems , 2007, IEEE Antennas and Wireless Propagation Letters.

[19]  C. M. Alabaster,et al.  Permittivity of human skin in millimetre wave band , 2003 .

[20]  R. Sauleau,et al.  New Method for Determining Dielectric Properties of Skin and Phantoms at Millimeter Waves Based on Heating Kinetics , 2012, IEEE Transactions on Microwave Theory and Techniques.

[21]  N Chahat,et al.  A Compact UWB Antenna for On-Body Applications , 2011, IEEE Transactions on Antennas and Propagation.

[22]  L. Vallozzi,et al.  A Textile Antenna for Off-Body Communication Integrated Into Protective Clothing for Firefighters , 2009, IEEE Transactions on Antennas and Propagation.

[23]  K. Foster,et al.  Effect of Surface Cooling and Blood Flow on the Microwave Heating of Tissue , 1978, IEEE Transactions on Biomedical Engineering.

[24]  M C Ziskin,et al.  Local heating of human skin by millimeter waves: A kinetics study , 2003, Bioelectromagnetics.

[25]  Shinji Uebayashi,et al.  Characteristics of biological tissue equivalent phantoms applied to UWB communications , 2007 .

[26]  A. Rydberg,et al.  Body Surface Backed Flexible Antennas for 17 GHz Wireless Body Area Networks Sensor Applications , 2007, 2007 European Conference on Wireless Technologies.

[27]  IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques - Redline , 2013, IEEE Std 1528-2013 (Revision of IEEE Std 1528-2003) - Redline.

[28]  R. Langley,et al.  Dual-Band Wearable Textile Antenna on an EBG Substrate , 2009, IEEE Transactions on Antennas and Propagation.

[29]  C. Parini,et al.  Antennas and propagation for on-body communication systems , 2007, IEEE Antennas and Propagation Magazine.

[30]  F. Tufvesson,et al.  Characterization of 60 GHz shadowing by human bodies and simple phantoms , 2012, 2012 6th European Conference on Antennas and Propagation (EUCAP).

[31]  Yang Hao,et al.  Effect of human body movements on performance of multiband OFDM based ultra wideband wireless communication system , 2010, 2010 Loughborough Antennas & Propagation Conference.

[32]  C Gabriel,et al.  Tissue equivalent material for hand phantoms. , 2007, Physics in medicine and biology.

[33]  Yang Hao,et al.  Arm movements effect on ultra wideband on-body propagation channels and radio systems , 2009, 2009 Loughborough Antennas & Propagation Conference.

[34]  J. Barthel,et al.  The dielectric relaxation of water between 0°C and 35°C , 1999 .

[35]  Bruce E. Hammer,et al.  Physical Properties of Tissues , 1991 .

[36]  Peter Hall,et al.  Antennas and propagation for body centric communications , 2006 .

[37]  Ronan Sauleau,et al.  Human skin-equivalent phantom for on-body antenna measurements in 60 GHz band , 2012 .

[38]  P.S. Hall,et al.  Diversity Performance Analysis for On-Body Communication Channels at 2.45 GHz , 2009, IEEE Transactions on Antennas and Propagation.

[39]  S. Uebayashi,et al.  Dry phantom composed of ceramics and its application to SAR estimation , 1993 .