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Field Evaluation of the Human Exposure from Multi-Band, Multi-System Mobile Phones
15/11/2012

Field Evaluation of the Human Exposure from Multi-Band, Multi-System Mobile Phones

Sven Kühn, and Niels Kuster, IEEE Transactions Electromagnetics Compatibility, Volume 55, Issue 2, pp. 275-287, April 2013, online November 15, 2012

Mobile phones present the strongest source of radio-frequency electromagnetic field exposure to the human head. Mobile phones are routinely assessed with respect to safety by specific absorption rate measurements at maximum output power. The difference of the exposure due to power control during normal usage was evaluated. A mobile measurement system to assess the effect of the power control in real networks was developed. It presents a realistic load to the phone and is able to measure the output power and band synchronously for the GSM900, DCS1800, and UMTS1950 bands. The system has a dynamic range of 60 dB and a measurement uncertainty of <1 dB for GSM and <1.5 dB for UMTS. Using the system, three mobile phones were evaluated in the three Swiss networks in urban and rural areas. The phones were tested in dual system (GSM and UMTS) and GSM only modes. The results show a small change of the mean output power in GSM mode (from -2 to -10 dB) compared to 30-dB power control dynamic range. The mean output power in UMTS was a factor $>$100 lower than GSM. In urban areas, UMTS was generally available and preferably used by the phones with rare fall backs to GSM. In the suburban/rural area, UMTS was hardly available or used by the phones.

PAPERS

01/11/2012

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balzano@itis-usa.org

 

ELF Exposure System for Live Cell Imaging

Myles Capstick, Primo Schär, David Schürmann, Albert Romann, and Niels Kuster, Bioelectromagnetics, online ahead of print November 01, 2012

 
PAPERS

25/10/2012

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balzano@itis-usa.org

 

Evaluation of Wireless Resonant Power Transfer Systems With Human Electromagnetic Exposure Limits

Andreas Christ, Mark G. Douglas, John Roman, Emily B. Cooper, Alanson P. Sample, Benjamin H. Waters, Joshua R. Smith and Niels Kuster, IEEE Transactions on Electromagnetic Compatibility, Volume 55, Issue 2, pp. 265-274, April 2013, online October 25, 2012

 
PAPERS

16/10/2012

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balzano@itis-usa.org

 

The Effect of Diode Response of Electromagnetic Field Probes for the Measurements of Complex Signals

Jagadish Nadakuduti, Sven Kuehn, Marcel Fehr, Mark Douglas, Katja Pokovic, and Niels Kuster, IEEE Transactions on Electromagnetic Compatibility, Volume 54, Issue 6, pp. 1195-1204, December 2012, online October 16

 
PAPERS

11/10/2012

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balzano@itis-usa.org

 

Evaluation of the RF Heating of a Generic Deep Brain Stimulator Exposed in 1.5 T Magnetic Resonance Scanners

Eugenia Cabot, Tom Lloyd, Andreas Christ, Wolfgang Kainz, Mark Douglas, Gregg Stenzel, Steve Wedan, and Niels Kuster, Bioelectromagnetics, Volume 34, Issue 2, pp. 104-113, February 2013, online October 11

 
PAPERS

01/10/2012

Contact
balzano@itis-usa.org

 

Patient-Specific Simulations and Measurements of the Magneto-Hemodynamic Effect in Human Primary Vessels

Adamos Kyriakou, Esra Neufeld, Dominik Szczerba, Wolfgang Kainz, Roger Luechinger, Sebastien Kozerke, Robert McGregor, and Niels Kuster, Physiological Measurement, Volume 33, Issue 2, pp. 117–130, February 2012, online January 6

 
 
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