Performance evaluation of mobile phone radiation minimization through characteristic impedance measurement for health-care applications

As mobile phones have become more essential and necessary handheld devices in present world generation. Because of the cost reduction and simplicity of mobile phones, the number of mobile users, particularly children, increases drastically within few years. But the effect of mobile Electro Magnetic (EM) radiation on children is more severe than adults. This paper investigates a method to limit radiation of mobile antenna using impedance matching technique by varying the length of antenna. We make use of simulation tool called Advanced Design System (ADS). The characteristics of impedance of antenna placed inside the TEM (Transverse ElectroMagnetic) cell are measured.