A surface cloak using active Huygens sources

Generating discontinuities in the electromagnetic field can be accomplished by impressing electric and magnetic currents along the boundary of the discontinuity. Here we demonstrate how this idea can be used to develop cloaks and refract plane-waves in an arbitrary fashion. The discontinuity in the field is satisfied by using a surface of discrete orthogonal electric and magnetic dipoles which can be thought of as a Huygens source. We also demonstrate initial results towards implementing these sources for cloaking by showing a planar loop antenna acting as a magnetic dipole.