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Patch-based metasurfaces as generic structures of the reflective flat optical devices, such as flat mirrors, waveplates, polarizer, and holograms, should fulfill two basic requirements of covering 0 to 2π phase shift range and providing a sufficiently high reflection amplitude. Under the current design paradigm, the design process has been based only on the width and length of the patch elements of...
In this paper we studied real and ideal metal based patch antennas, in order to compare their scattering characteristics. It is shown that plasmonic nature of metals leads to a better ability of these antennas to control the phase front of the reflected light. Also the dimensions of the antenna could be much shorter than the wavelength in comparison to their microwave counterpart, which make them...
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