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meta- +‎ mirror


metamirror (plural metamirrors)

  1. (physics) A surface composed of single planar array of electrically small bianisotropic inclusions
    • 2016, Svetlana N. Tcvetkova, Viktar S. Asadchy, Sergei A. Tretyakov, “Scanning characteristics of metamirror antennas with sub-wavelength focal distance”, in arXiv[1]:
      In addition to offering a possibility to realize extremely small focal distances, metamirror antennas are practically penetrable and invisible for any radiation outside of the operating frequency range..