The Property of the Horizontal Dipole Radiating in the Presence of a Single Lossless Metamaterial Sphere

The electric field properties of the horizontal dipole radiation in the presence of a lossless metamaterial sphere are investigated. First, the solution of the electromagnetic field of the model could be obtained. Second, the near field properties are investigated according to the electromagnetic and geometrical parameters. It could be seen that in the metamaterial sphere, the focusing phenomenon is obviously observed. It is in consistent with the analysis. Throughout the article, the conventional sphere is utilized as reference. No focus is observed in the conventional material sphere as it does not have the characteristic of negative refraction.