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单极手机与分层人头模型作用系统的数值模拟 被引量：3

Numerical Simulation of Interaction System Between Monopole Handset and Layered Human Head Model
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摘要 采用三层球形人头模型 ,在 90 0MHz的频率下应用时域有限差分 (FDTD )法模拟计算了单极天线手机作用下人头内的比吸收率分布 .通过与实验结果的对比 ,验证了计算方法的有效性 .计算结果表明 :天线越短 ,比吸收率 (SAR)和功率吸收比越大 ,人头吸收手机辐射能量越多 ,吸收可达一半以上 ;未成年人人头模型的SAR峰值及其平均值均大于成人人头模型 ,λ/ 4天线长度下未成年人平均SAR (0 .1 1 2W /kg)超出IEEC95 .1—1 991规定的安全限量 (0 .0 8W /kg) 。 The SAR(Specific Absorption Rates)distribution in human head emitted by a monopole antenna handset was simulated using the finite difference time domain (FDTD) method with a three layered human head model at the frequency of 900 MHz. The feasibility of the calculating method was proved by the comparison with experimental results. The calculated results show that SAR and the absorption rate of power increase when reducing the length of antenna, and the absorption energy can be more above half of the total radiation energy. The peak and the average SARs of teenager are more than those of adult in the human head model. The average SAR (0.112 W/kg) of teenager exceeds the IEEC95.1-1991 limit (0.08 W/kg) when the monopole length is λ/4, which means the harm of handset radiation to teenagers is more serious than that to adults.
作者 周晓明 赖声礼
机构地区 华南理工大学电子与信息学院
出处 《华南理工大学学报（自然科学版）》 EI CAS CSCD 北大核心 2003年第12期5-8,共4页 Journal of South China University of Technology(Natural Science Edition)
基金 国家自然科学基金资助项目 (6 0 0 71 0 33) 广东省科技厅社会发展攻关项目 (2 0 0 2C30 2 0 2 )
关键词 时域有限差分法 单极天线 分层人头模型 数值模拟 手机电磁辐射 生物电磁学 handset radiation finite difference time domain method monopole antenna
分类号 TN929.533 [电子电信—通信与信息系统] Q64 [生物学—生物物理学]
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参考文献2

二级参考文献15

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共引文献8

同被引文献31

  • 1Whittow W G,Edwards R M.A Study of Changes to Specific Absorption Rates in the Human Eye Close to PerfectlyConducting Spectacles Within the Radio Frequency Range 1.5 to 3.0 GHz[J].IEEE Transactions on Antennas andPropagation,2004,52(12):3207-3212.
  • 2Ojerinde O,Panagamuwa C J,Whittow W G.SAR Variations in the Face due to Semi-rimmed Spectacles and PolarizedSources at GSM900 and GSM1800[C]//European Conf on Ant&Prop.Berlin,2009:2962-2966.
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  • 5Chou H H,Hsu H T,Chou H T,et al.Reduction of Peak SAR in Human Head for Handset Applications with ResistiveSheets(R-cards)[J].Progress In Electromagnetics Research,2009,94:281-296.
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引证文献3

二级引证文献22

华南理工大学学报（自然科学版）
2003年 第12期

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