Independently tunable quad band patch antenna using CSRR for C and X-band applications

The suggested antenna is based on a patch including complementary split-ring resonators in the ground plane and a truncated corner slot. The antenna displays four operational bands in this manner, and its resonant frequencies can be individually adjusted by adjusting the ground plane resonator structures and the patch slot's dimensions. Furthermore, the antenna displays a notch-band feature at 10.7 GHz as a result of the complementary split-ring resonator structures' anti-resonant behavior. Four X-band operating bands are displayed by the suggested antenna, together with their respective absolute and relative bandwidths. 7.0–7.2 GHz (200 MHz, 7.8–8.0 GHz (200 MHz),8.3–8.4 GHz (100 MHz) and 8.7-8.9 GHz(200MHz) s. The antenna is simulated in order to achieve desired gain, omnidirectional radiation patterns, and return loss characteristics.