Product Info

MORLAB
Shenzhen Morlab Communications Technology Co., Ltd.
FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road,
Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China
Tel: [phone] Fax: [phone]
Http://www.morlab.cn E-mail: [e-mail]
REPORT No.：SZ21070039S02
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length of the 10 g cube 21,5mm.The zoom scan integer steps can be user defined so as to reduce
uncertainty, but normal practice for typical test applications utilize a physical step of 5x5x7
(8mmx8mmx5mm) providing a volume of 32mm in the X & Y axis, and 30mm in the Z axis.
10.5. SAR Averaged Methods
In DASY, the interpolation and extrapolation are both based on the modified Quadratic Sheppard’s
method. The interpolation scheme combines a least-square fitted function method and a weighted
average method which are the two basic types of computational interpolation and approximation.
Extrapolation routines are used to obtain SAR values between the lowest measurement points and
the inner phantom surface. The extrapolation distance is determined by the surface detection
distance and the probe sensor offset. The uncertainty increases with the extrapolation distance. To
keep the uncertainty within 1% for the 1 g and 10 g cubes, the extrapolation distance should not be
larger than 5 mm.
10.6. Power Drift Monitoring
All SAR testing is under the DUT install full charged battery and transmit maximum output power. In
DASY measurement software, the power reference measurement and power drift measurement
procedures are used for monitoring the power drift of DUT during SAR test. Both these procedures
measure the field at a specified reference position before and after the SAR testing. The software will
calculate the field difference in dB. If the power drift more than 5%, the SAR will be retested.