Electromagnetic field measurements of radio transmitters in urban area and exposure analysis

Ozen S., Helhel S., Colak O. H.

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, cilt.49, sa.7, ss.1572-1578, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 7
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1002/mop.22548
  • Dergi Adı: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1572-1578
  • Anahtar Kelimeler: radio transmitters, microwave measurement, SAR, residential exposure, health aspects, HETEROGENEOUS MODEL, SAR CALCULATIONS, RADIATION
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Farfield measurement of electric fields in an area surrounding the GSM, and TV broadcast stations in Antalya (Turkey) is presented. A great inclination to use of mobile phones as well as FM radios and TV transmitters has brought about a proliferation of new radio base stations. Lack of public information and scientific studies carried out at limit values cause a spite against radio companies. Collected data through out Antalya City demonstrates that radio emissions are about at most 10% of limit values for GSM transmitters, while it is about 50% of limit values for TV transmitters. Results show that 164 MHz radio transmitter (similar to 1.1 mW/kg) produces about 60 times stronger local SAR than 1800 MHz GSM transmitter (similar to 0.02 mW/kg), and children are more sensitive than average-man for the same electric field intensity, and gather more SAR values. (C) 2007 Wiley Periodicals, Inc.

Keywords:

  • radio transmitters;
  • microwave measurement;
  • SAR;
  • residential exposure;
  • health aspects.

Abstract

Far field measurement of electric fields in an area surrounding the GSM, and TV broadcast stations in Antalya (Turkey) is presented. A great inclination to use of mobile phones as well as FM radios and TV transmitters has brought about a proliferation of new radio base stations. Lack of public information and scientific studies carried out at limit values cause a spite against radio companies. Collected data through out Antalya City demonstrates that radio emissions are about at most 10% of limit values for GSM transmitters, while it is about 50% of limit values for TV transmitters. Results show that 164 MHz radio transmitter (∼1.1 mW/kg) produces about 60 times stronger local SAR than 1800 MHz GSM transmitter (∼0.02 mW/kg), and children are more sensitive than average-man for the same electric field intensity, and gather more SAR values.© 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1572–1578, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22548