Superstrate antennas based on near-zero refractive index metamaterials
Metamaterials are a kind of artificial electromagnetic medium with different novel properties from conventional materials.As a kind of metamaterial,near-zero refractive index media has been widely used in super-strate antennas because its equivalent refractive index is close to zero.The effect of different distance between the superstrate and antennas when the near-zero refractive index metamaterials are used as antenna superstrates is studied,which can provide some reference for the practical application.
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