Crescent moon-shaped artificial magnetic conductor ground plane for patch antenna application

In this paper, a crescent moon-shaped artificial magnetic conductor (AMC) for patch antenna ground application is presented. The AMC is designed to operate at 3.5 GHz with a bandwidth of 5 %. A patch antenna operate at similar operating frequency has been designed to serves as a reference antenna. Subsequently, the proposed AMC is incorporate with the patch antenna. The AMC ground plane incorporation successfully improved the antenna bandwidth up to 160 % while reducing patch size as much as 10%. The Parametric studies conducted and discussed includes the reflection phase of the AMC design, effect of air gap to the multi substrate structure, return loss of the patch antenna and radiation pattern.