FDTD手机天线建模在1800兆赫的电气性能和SAR结果

Proceedings of the 2nd International Conference on Bioelectromagnetism (Cat. No.98TH8269) Pub Date : 1998-02-15 DOI:10.1109/ICBEM.1998.666408

John T. Rowlev, Rod, Waterhouse, Ken H. Joynerl

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引用次数: 1

摘要

时域有限差分技术(FDTD)由于相对容易对复杂介电体进行建模而受到许多研究人员的青睐。给出了半波长偶极子、单极子和平面倒F型天线在自由空间和不同头部幻像存在下的1800 MHz时的天线性能和比吸收率(SAR)结果。使用的幻影是一个均匀的球体，一个分层的球体和一个现实的头部模型，都使用2.5毫米立方体素网格。SAR结果的趋势证实了其他人的观察，即与更现实的模型相比，更简单的头部模型倾向于高估最大SAR。

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FDTD handset antenna modelling at 1800 MHz for electrical performance and SAR results

The Finite Difference Time Domain Technique (FDTD) has been favoured for numerical bioelectromagnetic analysis by a number of researchers because of the relative ease of modelling complex dielectric bodies. Antenna performance and specific absorption rate (SAR) results are presented at 1800 MHz for a half wavelength dipole, a monopole and a planar inverted F antenna in free space and in the presence of different head phantoms. The phantoms used were a homogeneous sphere, a layered sphere and a realistic head model all using a 2.5 mm cubic voxel grid. The trend in the SAR results confirms the observation of others that the simpler head phantoms tend to overestimate the maximum SAR in comparison to more realistic models.

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Proceedings of the 2nd International Conference on Bioelectromagnetism (Cat. No.98TH8269)

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