A Study of Using Metamaterials as Antenna Substrate to Enhance Gain

  title={A Study of Using Metamaterials as Antenna Substrate to Enhance Gain},
  author={B. Wu and Wen Xiao Wang and Joe Pacheco and Xiaonan Chen and T. Grzegorczyk and J. A. Kong},
Using a commercial software, simulations are done on the radiation of a dipole antenna embedded in metamaterial substrates. Metamaterials under consideration are composed of a periodic collection of rods, or of both rods and rings. The S-parameters of these metamaterials in a waveguide are analyzed and compared with their equivalent plasma or resonant structure. Farfield radiation is optimized by analytic method and is simulated numerically. The metamaterial is shown to improve the directivity. 
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