Design and realization of a UWB radar for breath activity monitoring

In this paper the design and the realization of a ultra wide band (UWB) radar for breath activity monitoring is described. The radar structure is first described and then the design of the various subsystems, performed by using commercial CAD, is shown. Finally, the subsystems have been realized by means of a low cost planar technology and measurement results are presented, evidencing a good agreement with simulations. The EMC analysis of the whole system evidences the compliance of the radar with International Space Station emission masks.

[1]  T. Scullion,et al.  Impulse ground penetrating radar for nondestructive evaluation of pavements , 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).

[2]  A. Stelzer,et al.  Non-invasive respiratory movement detection and monitoring of hidden humans using ultra wideband pulse radar , 2004, 2004 International Workshop on Ultra Wideband Systems Joint with Conference on Ultra Wideband Systems and Technologies. Joint UWBST & IWUWBS 2004 (IEEE Cat. No.04EX812).

[3]  Thomas E. McEwan,et al.  Micropower impulse radar , 1997 .

[4]  T. Forshaw.  Everything you always wanted to know , 1977 .

[5]  Cam Nguyen,et al.  A novel, compact, low-cost, impulse ground-penetrating radar for nondestructive evaluation of pavements , 2004, IEEE Transactions on Instrumentation and Measurement.

[6]  Igor Yakovlevich Immoreev,et al.  Short -Distance Ultrawideband Radars , 2005 .

[7]  Cam Nguyen,et al.  Novel low-cost ultra-wideband, ultra-short-pulse transmitter with MESFET impulse-shaping circuitry for reduced distortion and improved pulse repetition rate , 2001, IEEE Microwave and Wireless Components Letters.

[8]  D. Caratelli,et al.  A Low-Profile Printed Drop-Shaped Dipole Antenna for Wide-Band Wireless Applications , 2011, IEEE Transactions on Antennas and Propagation.

[9]  G. D. Cormack,et al.  Picosecond pulse generator using delay lines , 1993 .

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

[11]  T. Scullion,et al.  New uniplanar subnanosecond monocycle pulse generator and transformer for time-domain microwave applications , 2001 .

[12]  Jenshan Lin,et al.  Range correlation and I/Q performance benefits in single-chip silicon Doppler radars for noncontact cardiopulmonary monitoring , 2004, IEEE Transactions on Microwave Theory and Techniques.

[13]  I.Y. Immoreev,et al.  Short-distance ultra wideband radars , 2005, IEEE Aerospace and Electronic Systems Magazine.

[14]  刘丽华,et al.  A Novel UWB Sampling Receiver and Its Applications for Impulse GPR Systems , 2010 .

[15]  W. M. Grove.  Sampling for Oscilloscopes and Other RF Systems: DC Through X-Band , 1966 .

[16]  Sergey Ivashov,et al.  Detection of Human Breathing and Heartbeat by Remote Radar , 2004 .