Pendry et al. were able to show that a three-dimensional array of intersecting, thin wires could be used to create negative values of permittivity (or "ε"), and that a periodic array of copper split ring resonators could produce an effective negative magnetic permeability (or "μ").
Holmdel Horn Antenna | Antenna TV | Parabolic antenna | parabolic antenna | Omnidirectional antenna | Log-periodic antenna | Innovative Space-based Radar Antenna Technology | horn antenna | Bright Antenna | Yagi-Uda antenna | smart antenna | Laser Interferometer Space Antenna | Directional antenna | directional antenna | Antenna farm | antenna farm | Adcock antenna | A comparison of the sensitivity of WMAP with COBE and Penzias and Wilson's Holmdel Horn Antenna |