Design of Unequally Excited Two Elements Antenna Array using Gysel Power Divider

In this paper, a Gysel Power Divider has been designed at 1.5 GHz operating frequency. Two rectangular microstrip patch antennas, operating at the same frequency, has been designed and fed to the power divider to form an antenna array. The proposed array offers significant gain, improved reflection co efficient and lower side lobe level compare to that of the conventional antenna array. The relative position of the two output ports have been varied to excite unequal power distribution of the radiating elements to achieve optimum results.