Research Article
High-Directivity Antenna Array Based on Artificial Electromagnetic Metamaterials with Low Refractive Index
Figure 4
Three-dimensional radiation patterns of MTMs-cover array and the conventional type: (a) conventional 2 × 2 element antenna array; (b) 2 × 2 element antenna array with MTMs-cover.
(a) Conventional four-element antenna array |
(b) Four-element antenna array integrated with MTMs-cover |