Design of Compact Quadruple Slot Antenna with Circular Polarization for GPS Applications

In this paper, a new compact quadruple slot antenna is proposed for GPS applications. This antenna has a right hand circular polarization which is suitable for GPS satellite signal reception. The antenna is formed by four similar slot antenna excited with 90 degree phase difference. The antenna dimension is 122424mm3 which is very compact compared with the references. Moreover, the antenna has a very good right hand polarization in the horizon which increases the GPS accuracy. Also, the antenna gain is 2.44 dB at the GPS frequency which is good enough for signal acquisition. These specifications introduce this antenna as a good candidate for GPS applications.