Mobile phone radiation reduction using shield made of different materials

In recent years, mobile phone technology has wit-nessed substantial growth. The mobile phone radiates electro-magnetic waves at around 900MHz, 1800MHz and or 2100MHz. Mobile phone radiation interact with biological tissues, creating adverse health effects. It demands methods for reducing radiation. This paper proposes different shields made of aluminum, copper, nickel, silver, zinc, ferrite with different dimensions. Dipole antenna was designed to operate at 900MHz frequency, and two-layer spherical shell was designed to represent human head phantom. On this, designed shields were included and analyzed using computational software. SAR averaged over 10gram and 1gram of tissue was obtained. Results were compared and percentage SAR reduction of each shield was calculated.