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1 25 November 2013 RF Safety Standards Prof Ely Levine AFEKA College of Engineering
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2 CONTENTS Background Frequencies Standards Guidelines
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3 Non Ionizing Radiation - Any evidence for health risks ?
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6 Frequencies 50/60 Hz (power) 100-400 kHz (Induction) 6.78, 13.56, 27.12 MHz (SRD) VHF/UHF (radio, TV) 740-2100 MHz (cellular) S/C (2-8 GHz) (wireless)
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7 ISM - special waivers 6.78, 13.56, 27.12 MHz 433, 868, 915 MHz 2.45, 5.85 GHz 24.125 GHz
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8 Standards Induced Currents [mA] Electric Fields [V/m] Magnetic Fields [A/m]- [mGauss] Radiation [W/m ²]- [mW/cm²] SAR [W/kg]
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9 Standards ICNIRP (WHO) Worldwide IEEE ANSI C.95 Worldwide FCC CH.15 and CH.18 USA ETSI EN300330-1 Europe Code 6 Canada
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24 SUMMARY (general public) Magnetic Field 50/60 Hz SRD (SAR & magnetic/electric) Terminals (SAR) Far Fields (power density)
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25 Static Magnetic Field (50/60 Hz) short period of time 1000 mG constant exposure 2 mG
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26 SAR (W/kg) whole body head ICNIRP 0.08 2.0 IEEE ANSI 0.08 1.6 CODE 6 0.08 1.6 SAR measurements are not practical under 100 MHz
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27 0.5 MHz H (A/m) E (V/m)________ ICNIRP 0.73/f = 18 mG 87 V/m IEEE ANSI 16.3/f = 410 mG 614 V/m CODE 6 2.2 A/m = 27 mG 280 V/m 6.78 MHz H (A/m) E (V/m)________ ICNIRP 0.73/f = 1.3 mG 87/ f = 33 V/m IEEE ANSI 16.3/f = 30 mG 824/f = 121 V/m CODE 6 2.2/f = 4 mG 280/f = 41 V/m 13.56 MHz H (A/m) E (V/m)________ ICNIRP 0.073 A/m = 1 mG 28 V/m IEEE ANSI 16.3/f = 15 mG 824/f = 60 V/m CODE 6 2.2/f = 2 mG 28 V/m 27.12 MHz H (A/m) E (V/m)_________ ICNIRP 0.073 A/m = 1 mG 28 V/m IEEE ANSI 16.3/f = 7 mG 824/f = 30 V/m CODE 6 2.2/f = 1 mG 28 V/m Short Range Devices 1 A/m = 12.56 mG
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28 S(mW/cm ² )_______________ 0.4 to 2 ICNIRP f/2000 (400-2000 MHz) 1 (f>2000 MHz) IEEE ANSI f/1500 (300-3000 MHz) CODE 6 f/1500 (300-1500 MHz) 1 (f>1500 MHz) Far Field 800-2700 MHz
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