Optimum area of arranged unit cell of artificial magnetic conductor reflector for dipole antenna

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 a configuration of the AMC reflector must be adjusted for each antenna, studies on the configuration of the optimum AMC reflector are not enough yet. This paper describes the optimum AMC reflector configuration for high directive gain and low-profile dipole antenna with the AMC reflector. Here, the arranged unit cell area and the thickness of the AMC reflector are considered. The AMC treated in this paper are composed of the patch or loop type FSS (Frequency Selective Surface) and the ground plane. It is shown that the area of the arranged unit cell is one of the important factors to obtain the high directive gain. Moreover, it is shown that the high directive gain dipole antenna with the AMC reflector can be realized by the optimum area of the arranged unit cell.