Effects of Human Body Interference on the Performance of a GPS Antenna

Global Positioning System (GPS) provides navigation and positioning services to millions of users worldwide. Evolution of GPS mobile receivers added to its popularity and made it an essential element of wireless body area networks (WBAN) and wireless personal area networks (WPAN). Human body is the integral part of such applications and affects their performance. This paper investigates the effects of human body on the performance of a GPS antenna in LI frequency band considering various antenna-body separations, different antenna positions on the body and various body postures. These effects are studied and analysed via electromagnetic simulations.