Electromagnetic-Thermal Analysis of Human Head Exposed to Cell Phones With the Consideration of Radiative Cooling

• Published in: IEEE antennas and wireless propagation letters Vol. 17; no. 9; pp. 1584 - 1587
• Main Authors: Zhang, Huan Huan, Lin, Zhong Chao, Sha, Wei E.I., Choi, Wai Wa, Tam, Kam Weng, Donoro, Daniel Garcia, Shi, Guangming
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.09.2018; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Boundary conditions; Cellular phones; Computer simulation; Convective cooling; Cooling; Electromagnetic radiation; Electromagnetics; Finite difference time domain method; Finite element analysis; Finite element method; finite-element method (FEM); Mathematical model; Mathematical models; Numerical methods; Numerical models; Organs; radiative cooling; Skin; specific absorption rate (SAR); Thermal analysis; Thermal simulation; Time domain analysis
• ISSN: 1536-1225; 1548-5757
• DOI: 10.1109/LAWP.2018.2856365

The influences of electromagnetic radiation from mobile phones on human health have aroused significant public concern. One of the most serious consequences is the increment of temperature of tissues and organs. Due to the specificity of the research object, numerical methods for electromagnetic and thermal analysis are usually adopted instead of trials. Most of the existing studies adopt a finite-difference time-domain method for electromagnetic and thermal simulation. Moreover, the radiative cooling phenomenon is neglected during the thermal simulation. In this letter, we utilized the finite-element method with tetrahedral elements to get a better modeling of the human head. Furthermore, the radiative cooling is also taken into account by using the radiation boundary condition. Numerical results validate the accuracy and capability of the proposed method.