[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5515/JKIEES.2014.14.4.336

Measurement Data Comparison of Fast SAR Measurement System by Probe Arrays with Robot Scanning SAR Measurement System

Kim, Jun Hee (Department of Electronics and Electrical Engineering, Dankook University)
Gimm, Yoon-Myoung (Department of Electronics and Electrical Engineering, Dankook University)

Publication Information

Journal of electromagnetic engineering and science / v.14, no.4, 2014 , pp. 336-341 More about this Journal

Abstract

Dosimetry of radiating electromagnetic wave from mobile devices to human body has been evaluated by measuring Specific Absorption Rate (SAR). Usual SAR measurement system scans the volume by robot arm to evaluate RF power absorption to human body from wireless devices. It is possible to fast estimate the volume SAR by software deleting robot moving time with the 2D surface SAR data acquired by arrayed probes. This paper shows the principle of fast SAR measurement and the measured data comparison between the fast SAR system and the robot scanning system. Data of the fast SAR is well corresponding with data of robot scanning SAR within ${\pm}3$ dB, and its dynamic range covers from 10 mW/kg to 30 W/kg with 4.8 mm probe diameter.

Keywords

2D Array; E-Field Probe; Fast SAR; Human Safety; Radio Frequency;

Citations & Related Records

Reference

1	A. Faraone, D. O. McCoy, C. K. Chou, and Q. Balzano, "Characterization of miniaturized E-field probes for SAR measurements," in Proceedings of IEEE International Symposium on Electromagnetic Compatibility, Washington, DC, 2000, pp. 749-754.
2	Y. M. Gimm, and D. H. Kwon, "Fast SAR measurement system structure using E-field sensors array," in Proceedings of 2010 Asia-Pacif ic Radio Science Conference (APRASC), Toyama, Japan, 2010.
3	M. Y. Kanda, M. G. Douglas, E. D. Mendivil, M. Ballen, A. V. Gessner, and C. K. Chou, "Faster determination of mass-averaged SAR from 2-D area scans," IEEE Transactions on Microwave Theory and Techniques, vol. 52, no. 8, pp. 2013-2020, 2004. DOI ScienceOn
4	R. F. Cleveland, D. M. Sylvar, and J. L. Ulcek, "Evaluating compliance with FCC guidelines for human exposure to radiofrequency electromagnetic fields," OET Bulletin 65 (Edition 97-01), Standards Development Branch, Allocations and Standards Division, Office of Engineering and Technology, Federal Communications Commission, Washington, DC, 1997.
5	B. Loader, A. Gregory, D. Bownds, and Y. Johnson, "Non-toxic phantoms for SAR measurements (30 MHz to 6 GHz)," in Proceedings of the 32nd Annual Meeting of the Bioelectromagnetics Society (BEMS), Seoul, Korea, 2010, p. 94.
6	Y. M. Gimm, Y. Ju, S. Kahng, Y. Lee, and S. Lee, "Quick SAR measurement system by 2D array E-field sensors," in Proceedings of Asia-Pacif ic Microwave Conference (APMC), Seoul, Korea, 2013, pp. 383-385.
7	Y. M. Gimm, and S. B. Lee, "Analysis of the SAR value by probe array," in Proceedings of 2014 KIEES Summer General Conference, Jeju, Korea, 2014, p. 90.
8	International Commission on Non-Ionizing Radiation Protection, "ICNIRP statement on the 'guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz)'," Health Physics, vol. 97, no. 3, pp. 257-258, 2009. DOI ScienceOn
9	T. Schmid, O. Egger, and N. Kuster, "Automated E-field scanning system for dosimetric assessments," IEEE Transactions on Microwave Theory and Techniques, vol. 44, no. 1, pp. 105-113, 1996. DOI ScienceOn
10	IEEE Recommended Practice for Determining the Peak Spatial-Averaged Specific Absorption Rate (SAR) in the Human Head from Wireless Communication Devices: Measurement Techniques, IEEE Standard 1528-2003.
11	Human exposure to radio frequency fields from handheld and body-mounted wireless communication devices-Human models, instrumentation, and procedures-Part 2: Procedure to determine the specific absorption rate (SAR) for mobile wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz), IEC 62209-2/FDIS, 2009.