In this paper, Circular patch antenna design with defected ground plane is designed. The antenna is designed with circular patch and defected ground plane to allow it to operate in lower frequency as well as improved the antenna gain. The antenna has a feeding port and two defected ground slots to affect the frequency of the antenna. The proposed antenna is designed and simulated using Computer Simulation Technology (CST) Studio Suite 2016. The designed antenna has an operating frequency of 2.42GHz. A prototype has been fabricated and tested using network analyser and the measured results are in a good agreement with simulations.
