Abstract: The objective is realizing downsizing of an antenna, suppressing the decrease in radiation efficiency, and suppressing narrowing of band. A magnetic dielectric antenna 10 is provided with a L-shaped electrode 12 having a meander shape, and a magnetic dielectric body base portion 11 provided to cover at least a part of the electrode 12, wherein the electrode 12 comprises an electrode portion 12a arranged so that the extending direction of electrode portion 12a is parallel with a ground portion with a predetermined gap therefrom, and an electrode portion 12b connected to the electrode portion 12a.