An algorithm for computations of the power deposition in human tissue

被引：69

作者：

Caputa, K ^{[1
]}

Okoniewski, M ^{[1
]}

Stuchly, MA ^{[1
]}

机构：

[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 3P6, Canada

来源：

IEEE ANTENNAS AND PROPAGATION MAGAZINE | 1999年 / 41卷 / 04期

关键词：

biological effects of electromagnetic radiation; radio frequency; power deposition; biological tissues; SAR in tissue; FDTD methods;

D O I：

10.1109/74.789742

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The Finite-Difference Time-Domain (FDTD) is the most often used method for evaluation of electromagnetic fields in human tissue. This is of particular importance for compliance testing of portable telephones. The specific absorption rate (SAR) averaged over 1 or 10 g tissue mass is required by regulations not to exceed a prescribed value. A computer algorithm is developed for post-processing the FDTD data. This algorithm can be used for uniform as well as graded meshes, while the required cubical shape is maintained. Extensive investigations are shown of the resultant SAR due to the number of electric field components used in field averaging, and the volume of air within the cube. The latter is easily controlled in the algorithm, but the regulations on the permissible SAR do not specify it at the present time.

引用

页码：102 / 107

页数：6

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