手机比吸收率测量系统中关键设备性能研究  

Research on the equipment performance of SAR testing system for mobile phones

作　　者：阚润田[1] 吕文[2] 李书芳[2] 

机构地区：[1]国家无线电监测中心,北京100037 [2]北京邮电大学,北京100083

出　　处：《电子测量技术》2006年第5期16-20,共5页Electronic Measurement Technology

基　　金：北京市自然基金(4063039)资助项目

摘　　要：手机电磁辐射对人体健康的影响是电磁生态学中新兴的课题,现在国际上普遍采用比吸收率(SAR)衡量,并且已经研制出精密的SAR测试系统。由于手机比吸收率的测量是在近区场,而且在测试中对结果不确定度产生贡献的因素较多,所以在严格执行测试程序的同时也必须深刻理解测试系统中关键设备的性能。本文简要介绍了SAR的原理和SAR测试系统的组成,详细分析了测试系统中关键设备:场强探头、人体头部模型、EUT夹具和测试液体的性能要求以及各种因素对测试结果的影响。The effect of electromagnetic radiation from mobile phones on human health is a rising subject for electromagnetic bionomy. Nowadays, people all over the word usually take SAR as the parameter to evaluate it, and precise SAR evaluation system has already been developed. As the measurement of SAR for mobile phones is in the near-field and there are a lot of factors contribute to the uncertainty of SAR, engineers have to not only obey the testing procedure, but also apprehend the performance of the equipments of SAR testing system. In this paper, the principle of SAR and components of SAR testing system are briefly introduced; then analyze performance needed of the pivotal equipments, i. e. , field strength probe, SAM, EUT holder and testing liquid, and various factors affecting the result in detail.

关 键 词：比吸收率 探头 人体头部模型 

分 类 号：TN929.53[电子电信—通信与信息系统]