Microstrip Antenna Array with Defected Ground Structure and Copper Tracks for Bandwidth Enhancement

A dual-element microstrip antenna array with two circles defected ground structure, and two copper tracks are proposed for the bandwidth enhancement. Bandwidth enhancement achieved with the introduction of dual circular slots defected ground structure. Furthermore, two copper tracks are integrated into one of the circles' defected ground structure to reduce the input impedance, producing more bandwidth enhancement of the antenna array. Parametric analysis of the proposed antenna array investigated for the investigation of bandwidth enhancement. The proposed antenna array generates a simulated impedance bandwidth of 1.52 GHz from 6.03 to 7.55 GHz, with an acceptable far-field radiation pattern achieved within the operating band.