Bandwidth Improvement of Slits-Slots with DGS Circular Patch Antenna for Wireless Communication

Wideband antennas are important components in modern communication systems, offering flexibility and efficiency across various applications Microstrip antenna is very popular because of its good performance, high gain, wide bandwidth, small size etc. in this designed antenna a wideband microstrip antenna with slits-slots cut into the circle-shaped patch. The simulated antenna is resonant at the frequency of 3.2 GHz from the frequency range of 2.67 GHz to 4.97 GHz. The proposed wideband antenna has achieved a gain of 2.34 dBi, reflection coefficients of -37.18 Db and VSWR 1.0 respectively, at the resonant frequency of 3.2 GHz. Simulated antenna also achieved good bandwidth of 2.3 GHz. Defected Ground Structure (DGS) technique has been used in the ground layer for achieving the wide bandwidth. This simulated wideband microstrip antenna could be used in Wi-Fi (IEEE 802.11ac), LTE, and emerging 5G wireless communication.