| 802.11 a/b/g和4.9GHz频段设备的SAR测试方法 |
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| 引用本文： | 李国庆,邹东屹,陈喆. 802.11 a/b/g和4.9GHz频段设备的SAR测试方法[J]. 安全与电磁兼容, 2011, 0(2): 9-13,22 |
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| 作者姓名： | 李国庆 邹东屹 陈喆 |
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| 作者单位： | 1. 工业和信息化部电信研究院中国泰尔实验室
2. 天津大学电子与信息学院 |
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| 摘 要： | 在分析802.11和4.9 GHz频段设备技术特点和现有SAR测量系统的基础上,介绍了测试模式的要求、测量信道的选择和数据传输速率的要求。为减小测量误差,对不同占空比和功率下的线性缩放原则,以及使用分集技术、MIMO和波束成形天线技术的设备的SAR测量方法也进行了分析和说明。
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| 关 键 词： | 802.11 4.9GHz频段设备 比吸收率 峰均功率比 线性缩放 多入多出 波束成形 |
SAR Measurement Methods for 802.11a/b/g and 4.9 GHz Frequency Band Devices |
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| Li Guoqing,Zou Dongyi,Chen Zhe. SAR Measurement Methods for 802.11a/b/g and 4.9 GHz Frequency Band Devices[J]. Safety & EMC, 2011, 0(2): 9-13,22 |
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| Authors: | Li Guoqing Zou Dongyi Chen Zhe |
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| Affiliation: | Li Guoqing,Zou Dongyi,Chen Zhe |
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| Abstract: | Based on the analysis of the technical features of 802.11 and 4.9 GHz frequency band devices and the existing SAR measurement systems,the requirements of test modes and the selection of test channels,as well as the data rates,are specified to make the SAR tests of such kinds of devices reliable,consistent and conservative.Furthermore,the principle of linearity scaling for different duty factor and power values is introduced to reduce the measurement error.At the same time,the SAR measurement method for the devices using advanced antenna technologies such as switched diversity,MIMO and beam-forming are detailed. |
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| Keywords: | 802.11 4.9 GHz frequency band devices SAR peak to average power ratio linearity scaling MIMO beam-forming |
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