Harith Ghanim Ayoub, Mohammed F. Ibrahim Alsarraj
A New Design single feed dual band micro-strip patch antenna that implemented in GPS applications is presented. The suggested antenna based on two bands of GPS systems. they are L1=1.575 GHz and L2=1.227 GHz. The suggested antenna principally comprises two resonance frequencies with contents square patch, two semi-circle, two rectangular slots, S - shaped slot, two truncated slot and four circle slots in the ground plane, which fed by a 50 𝛺 coaxial probe, with over all area of 94*94 mm2. The software CST Microwave studio is used to build a simulation for the suggested antenna. The results of the simulation showed an impedance for bandwidth of 20 MHz between (1.56 GHz - 1.58 GHz) by using L1 band, while L2 band, it was 20 MHz between (1.21 - 1.23GHz). The results also showed that the circular polarization radiation can be obtained through a probe feeding at one of the diagonal lines of the patch. This antenna can reduce the loss in S11, impedance behavior, Gain and farfield radiation pattern.
This paper was withdrawn due to certain technical errors.
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