In an apparatus for measuring a specific absorption rate (SAR) for use in a radio
apparatus, a first near magnetic field of a radio wave radiated from a reference
radio apparatus is measured in free space, and an SAR of the radio wave radiated
from the reference radio apparatus by using a predetermined phantom according to
a predetermined measurement method. A transformation factor is calculated
by dividing the measured SAR by a square value of the measured first near magnetic
field, and a second near magnetic field of a radio wave radiated from a radio apparatus
to be measured is measured in free space. Then an SAR of the radio wave radiated
from the radio apparatus to be measured is estimated and calculated by multiplying
a square value of the measured second near magnetic field by the calculated transformation
factor .
