EMF regulation changes and some related studies of human exposure to electromagnetic fields in S. Korea

SAR measurement requirement which had been applied only to mobile phones was expanded to other portable wireless communication equipments used within 20 cm from the human body according to Korea radio regulation in Jan. 2012. The two-way radio operating at 150 MHz was newly included in revised radio regulation of SAR assessment. Although international SAR measurement standard IEC 62209-2 requires SAR evaluation to be above 30 MHz, most of the technical specification for SAR validation are not described below 300 MHz. The physical dimensions of the flat phantom, reference dipole antenna, and the target SAR values are suggested to use them as reference values for SAR validation at 150 MHz. The suggested dipole antenna and flat phantom structures were made and tested to prove their validities.