In this paper, a novel design of end-fire modified wide band E-shaped nano-antenna is introduced with higher gain compare with conventional design at frequency range from 190 THz to 200 THz. An asymmetric hybrid plasmonic waveguide is proposed to feed the designed nano-antenna with less radiation leakage from the waveguide part and high electric field confinement. Overall, far-field radiation of the proposed antenna specifically at higher frequencies is more directive than conventional design.