Antenna

特許 係属中 PROBLEM TO BE SOLVED: To provide an antenna suitable for miniaturizing, which obtains good permeability characteristics without anisotropy even in the high-frequency domain. ; SOLUTION: The nano composite magnetic dielectric material is used as an electromagnetic joint adjusting body 20. The nano composite magnetic dielectric material has a structure in which a magnetic nanoparticle 20B is dispersed into an organic matrix 20A, and is the material showing the superparamagnetism.