Optimum reflector configuration for dipole antenna by using artificial magnetic conductor

A high gain and low-profile antenna can be realized by using an AMC (Artificial Magnetic Conductor) reflector that has PMC (Perfect Magnetic Conductor) characteristics. Since the configuration of the AMC reflector must be adjusted for each antenna, the configuration of the optimum AMC reflector has never been studied. This paper, describes the optimum AMC reflector configuration for high directive gain and low-profile dipole antenna with the AMC reflector. Here, the optimum number of AMC elements and the size of the ground plane of the AMC reflector are considered. And, a new arrangement of the elements for the AMC reflector is proposed. It was found by the simulation results that the highest directive gain was achieved by the dipole antenna with the AMC reflector with the 5×8 elements. Moreover, it was understood that the optimum AMC reflector didn´t depend on the size of the ground plane. The directive gain of the optimum configuration of the AMC reflector was almost 11.6 dBi.