Reflectarray Nano-Dielectric Resonator Antenna Using Different Metals
Keywords:
DRA, nano-antenna, reflectarrayAbstract
Nano-antennas have been introduced with wide bandwidth for faster data communications. The material properties of good conducting metals introduce plasmonic behavior at THz frequencies. The material property of good conducting metals using the Durde Lorentz model have been investigated. The radiation characteristics of nano-dielectric resonator antenna NDRA reflectarray at 633 nm have been investigated. A parametric study for the NDRA unit-cell dimensions and material has been introduced. Different types of metals are used as a supporting plane of the NDRA unit-cell. A NDRA with silver, copper, and aluminum supporting plane have been designed and analyzed for reflectarray antennas. A nano-reflectarray unit-cells with supporting plane having different metals have been introduced. Comparisons between the radiation characteristics of reflectarrays with different supporting plane metals have been illustrated. A compromise between the size, maximum gain, and operating bandwidth of the nanoreflectarray is investigated for terahertz applications. The finite integral technique is used to carry a full wave analysis to design a NDRA reflectarray.
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