Radiation performances of a dipole array configuration inserted in a left-handed media
In this work, the radiation improvement achieved when left handed media (LHM) are combined with dipole antennas has been analysed. The behaviour of two dipole antennas in array configuration, when a left handed superstrate and substrate are placed over and under them, has been analysed. Different positions of the dipoles have been studied. Besides, dielectric losses and copper split ring resonators and capacitively loaded strips have been taken into account for different distances between the dipoles in order to analyse their influence on the radiation properties. Simulation results are presented showing high efficiency antennas with enhanced gain patterns.