Combination of electrical and magnetic nanodipoles for broadband applications in optical nanocircuit

This paper presents a theoretical analysis of an optical nanocircuit connected with broadband nanoantenna composed of electric and magnetic nanodipoles with feeding of the electric dipole only. The numerical analysis of the nanoantenna is performed by method of moments (MoM). The calculated results are input impedance, current distribution, reflection coefficient, radiation efficiency, bandwidth, voltage reflection coefficient and electric near field. Comsol Multiphysics software calculates some of these results. The results show that the loop inserted into the circuit increases the bandwidth of nanoantenna and decreases the overall voltage reflection coefficient of the optical nanocircuit.