Impact of human hair configuration on the human head absorption rate

In this paper, electromagnetic cellular propagation modeling with the presence of a human head is presented, taking into account the nature of the human hair existing in the world. Numerical results obtained by the “Complete Technology” approach — offering Finite Integration Technique, Finite Element Method, Method of Moments, MLFMM, Transmission-line matrix and System Assembly and Modeling — are presented in CST Studio Suite simulations. As a cellular network, a typical IEEE human head has been used for this study featuring several ways of implementing hair on it and adding more layers to this hair. A patch directional antenna (also known as a rectangular micro strip antenna) that is resonant at 2.4 GHz is used for simulation. The main purpose of this study is to optimize the configuration of the human hair to get to a minimum SAR on the human body lying inside the tested area. Simulation results would provide a chart describing the best configuration of the human hair within environments which use cellular frequently.