Abstract
In this paper, we propose a novel approach based on the mantle cloaking method to reduce the mutual coupling between closely spaced planar antennas. We consider two microstrip-fed monopole antennas resonating at slightly different frequencies and show that by covering each antenna with a conformal elliptical metasurface formed by conformal and confocal printed arrays of sub-wavelength periodic elements, the antennas become invisible to each other and their radiation patterns are restored as if they were isolated.
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