3D visualization of temperature distributions induced by a cellular telephone in a model of the human head

Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI:10.1109/IMOC.2003.1244882

A. O. Rodrigues, J. J. Viana, L.O.C. Rodrigues, J. Vasconcelos, J. A. Ramírez, T. Green, E. Freeman

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引用次数: 1

Abstract

This paper is concerned with the three-dimensional (3D) visualization of the temperature distribution and the temperature rise in a refined model of the human head of a cellular telephone user. The human head model has a resolution of 1.86/spl times/1.11/spl times/1.11 mm and is composed of twelve different tissues. The cellular telephone is modelled as a dipole antenna, operating at 1.8 GHz and radiating powers of 120 and 600 mW. The SAR distribution and the temperature rise were calculated using the FDTD method. Differently from previous researches, a program was developed to visualize the temperature distribution and temperature rise in 3D, in different layers or in different materials of the model. 3D visualization allows a better and more natural understanding of the possible thermal effects. The device operating at 1.8 GHz, 120 and 600 mW resulted in maximum temperature rise values of 0.4/spl deg/C and 2/spl deg/C, respectively; and maximum SAR of 3.9 W/kg. These values do not exceed the safety standards.

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三维可视化的温度分布引起的蜂窝电话在一个人的头部模型

本文研究了蜂窝电话用户头部精细模型中温度分布和温升的三维可视化。人体头部模型的分辨率为1.86/spl倍/1.11/spl倍/1.11 mm，由12个不同的组织组成。蜂窝电话被建模为偶极天线，工作频率为1.8 GHz，辐射功率为120和600兆瓦。利用时域有限差分法计算了SAR分布和温升。与以往的研究不同的是，我们开发了一个程序，可以在三维、不同层或不同材料的模型中可视化温度分布和温升。3D可视化可以更好、更自然地理解可能的热效应。器件工作在1.8 GHz、120和600 mW时，最大温升值分别为0.4/spl℃和2/spl℃;最大SAR为3.9 W/kg。这些数值不超过安全标准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)

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