Equivalent circuit analysis for AMC with double layer patch type FSS

This paper describes the possibility of the miniaturized AMC (Artificial Magnetic Conductor) by the equivalent circuit analysis. The AMC with double layer patch type FSS (Frequency selective surface) is focused as the structure of AMC. It is clarified by the theoretical results that the operation frequency of the FSS becomes the half by using double layer patch type FSS. It is also shown that unit cell size of an AMC is miniaturized by the half.