Fast SAR 测试要求

有些SAR测量系统（如DASY）提供了一个快速扫描方法，可以基于平面区域扫描程序通过内插和外推的算法来预估1-g SAR值,这种方法减少了三维立体扫描程序，可大大减少测试时间。只要采用第29届生物电磁会议（2007）上提出的特定算法，且预估的1-g SAR≤1.2W/kg时，当满足以下条件时不需要三维立体扫描测量：

u  The area scan is measured at a distance ≤ 4 mm at ≤ 3 GHz and ≤ 2 mm at > 3 GHz from the phantom surface and the measurement requirements of KDB 865664 are met.

当频率≤3GHz，离模型表面的测试距离≤4 mm，当频率> 3 GHz，距离≤2 mm，且满足KDB 865664的测量要求。

u  The estimated 1-g SAR determined by the area scan for SAR system verification must be within 3% of the 1-g SAR determined by the corresponding zoom scan

在系统检查（偶极子）时1-g SAR预估值和三维立体值二者的偏差不能超过3%。

u  When all the SAR results for each exposure condition in a frequency band and wireless mode are based onestimated 1-g SAR, the 1-g SAR for the highest SAR configuration must be determined by a zoom scan. When the estimated 1-g SAR (fast SAR) of all test positions required for head SAR measurements (left, right, touch and tilt etc.) are all less than 0.8 W/kg, all the test positions can be considered as a single exposure condition. A zoom scan is required only for the highest fast SAR configuration among all the test positions. When the estimated 1-g SAR (fast SAR) of a test position is greater than or equal to 0.8 W/kg, that test position should be considered as a separate exposure condition. A zoom scan is required for the highest fast SAR measured for that test position. If the SAR for the remaining test positions are all less than 0.8 W/kg, these other test positions can be group together and considered as an exposure position. A zoom scan is required for the highest fast SAR measured among these test positions.

当同一频带和无线模式下每个曝光条件的所有SAR结果都基于估计的1-g SAR时，必须通过三维立体扫描来确定最高SAR配置的1-g SAR。当头部SAR测量（左，右，贴脸和倾斜等）所有测试位置的估计的1-g SAR（Fast SAR）＜0.8W / kg时，所有测试位置可以被认为是单个曝光条件。只有所有测试位置中最高的 Fast SAR配置才需要进行三维立体扫描。当测试位置的估计1-g SAR（Fast SAR）≥ 0.8W / kg时，该测试位置应当被视为单独的暴露条件。需要对该测试位置测量的最高Fast SAR进行缩放扫描。如果剩余测试位置的SAR都＜0.8W / kg，则这些其他测试位置可以组合在一起并被认为是曝光位置。在这些测试位置之间测量的最高Fast SAR需要进行三维立体扫描。

u  When estimated 1-g SAR is applied to an exposure condition in a frequency band and wireless mode, for the configurations that require zoom scans the estimated 1-g SAR determined by the area scan and the 1-g SAR determined by the zoom scan must be within 0.10 W/kg of each other. When zoom scan is measured, the zoom scan 1-g SAR is used to determine compliance. The estimated 1-g SAR is compared with the zoom scan 1-g SAR to confirm the validity of the algorithm. When the estimated 1-g SAR and zoom scan 1-g SAR differ by more than 0.1 W/kg, a KDB inquiry with all SAR distributions and results in the frequency band and wireless mode for that exposure condition should be submitted to determine if additional zoom scans are required. When the difference is greater than 0.2 W/kg, the estimated 1-g SAR can become highly inaccurate, estimated 1-g SARshould not be applied to the exposure condition in that frequency band and wireless mode; zoom scans are required.

当在一个频带和无线模式下，应用预估的1-g SAR时，对于需要三维立体扫描的配置，预估由区域扫描确定的1-g SAR和由三维立体扫描确定的1-g SAR ，差值必须在0.10 W / kg之内，当使用三维立体扫描测量时，三维立体扫描SAR作为其结果。当差值大于0.10 W / kg时需进行PBA，当差值大于0.20 W / kg时，不能用区域扫描，需要进行三维立体扫描。

u  The peak SAR location(s) required by the published RF exposure KDB procedures is distinctly identified by the area scan and all SAR levels at 1 cm surrounding the peak are ≥ 40% of the peak value

没有尖锐的梯度变化：在距离峰值1cm位置处的SAR值≥ 40% 的峰值数值。

u  A zoom scan is not required for any other purpose; for example, if the peak SAR location required for simultaneous transmission SAR test exclusion can be determined accurately by the SAR system or manually to discriminate between distinctive peaks and scattered noisy SAR distributions from the area scan

三维立体扫描无用于其他目的，例如，如果可以由SAR系统精确地确定同时传输SAR测试排除所需的峰值SAR位置，或者手动区分来自区域扫描的峰值和散射噪声SAR分布。

u  There must not be any warning or alert messages due to various measurement concerns identified by the SAR system; for example, noise in measurements, peaks too close to scan boundary, peaks are too sharp, spatial resolution and uncertainty issues etc.

测试时没有其他的测量警告或警报，例如，测量中的噪声，峰值与扫描边界太近，峰太尖，空间分辨率和不确定性问题等。

u  For occupational exposure, when it is allowed by the applicable published RF exposure KDB procedures, the estimated 1-g SAR should be ≤ 6.0 W/kg to avoid zoom scan measurements. When supported by the SAR system, the 1-g SAR estimation procedures may be adapted for 10-g SAR measurements.

当使用职业限值时，依照发布的RF照射KDB规程，SAR需要≤ 6.0 W/kg。