In recent decades, with the emergence and introduction of metamaterial structures, much research has been done to apply these structures in various fields of physics, microwave engineering and optics. Metamaterials are artificial structures with exotic properties, such as negative electric permittivity and magnetic permeability at the same time in a given frequency range, or exhibit frequency stopbands where no signal can propagate. One of the limitations of metamaterial structures is low bandwidth and lack of adjustability. Regulating the structure of the metamaterials, in addition to increase the degree of freedom to control the electromagnetic behavior and scattering of the structure, also solves the problem of low bandwidth.