Fayos-Fernandez Jose, Arranz-Faz Carlos, Martinez-Gonzalez Antonio M, Sanchez-Hernandez David
Departamento de Technologías de la Información y Comunicaciones, Universidad Politécnica de Cartagena, Cartagena, Spain.
Bioelectromagnetics. 2006 Jul;27(5):337-53. doi: 10.1002/bem.20245.
A study of the interaction between mobile phone antennas and a human head in the presence of different types of metallic objects, attached and pierced to the compressed ear, is presented in this article. Computed and measured results have been performed by considering a quasi-half-wavelength dipole as the radiating source and measurements with the DASY4 dosimetric assessment system. Two different human head models have been implemented: a homogeneously shaped sphere and a three-level head model with four different kinds of tissue. Antenna input impedance, reflection coefficient, radiation patterns, SAR distribution, absorbed power, and peak SAR values have been computed and measured for diverse scenarios, electromagnetic simulators, and organs. Despite the measuring accuracy limitations of the study, both simulated and measured results suggest that special attention has to be paid to peak SAR averaged values when wearing metallic objects close to the radiation source, since some increment of peak SAR averaged values is expected.
本文介绍了一项关于在存在不同类型金属物体（附着并刺入压缩耳部）的情况下，手机天线与人体头部之间相互作用的研究。通过将准半波长偶极子视为辐射源，并使用DASY4剂量评估系统进行测量，得出了计算结果和测量结果。已实现了两种不同的人体头部模型：形状均匀的球体和具有四种不同组织的三级头部模型。针对不同场景、电磁模拟器和器官，计算并测量了天线输入阻抗、反射系数、辐射方向图、比吸收率（SAR）分布、吸收功率和SAR峰值。尽管该研究存在测量精度限制，但模拟和测量结果均表明，当在辐射源附近佩戴金属物体时，必须特别关注SAR峰值平均值，因为预计SAR峰值平均值会有所增加。
