Mutual coupling reduction between neighboring strip dipole antennas using confocal elliptical metasurfaces

In this paper, we propose a novel approach based on the mantle cloaking method to reduce the mutual coupling between strip dipole antennas located in close electrical proximity to each other. We consider two strip dipole antennas resonating at slightly different frequencies separated by a short distance. We show that by covering each strip dipole with a conformal elliptical metasurface, the antennas become invisible to each other and their radiation patterns are restored as if they were isolated. All numerical results are confirmed by full-wave numerical simulations.