Modified elliptical nanoantenna for energy harvesting applications

Abstract

In this paper, two novel designs of nanoantenna for energy harvesting applications are introduced and numerically simulated using the 3D FDTD method. The proposed designs are mainly based on generating identical copies of original elliptical dipoles and then shifting the copies horizontally or vertically. The original elliptical dipoles and the shifted copies are merged together to obtain two novel shapes of nanoantennas with high harvesting efficacy. The proposed design offers total harvesting efficiency of 64.7 %; with an improvement of 85.9 % over the conventional rectangular dipole nanoantenna.