Based on the dimension of the single radiating element at C-band and X-band and the corporate feedlines for both geometry a 2×2 array antenna is fabricated and assembled. The fabricated antenna is shown in Fig 10. The radiation pattern of the antenna is measured at Anechoic Chamber Space Applications Centre Ahmedabad.

From measured results shown in Fig 11 it is observed that return loss bandwidth for the array is less than the bandwidth of single element. Fig 12 and Fig 13 show the radiation pattern of the patch array and slot array respectively. Simulated gain of patch array is 13.7 dBi at center frequency 5.35 GHz simulated gain of slot array is 11.0 dBi at center frequency 9.6 GHz.