Based on a space folding transformation, we propose a new way to hide an object in full space,namely, to cover-up the scattering of the hidden object with the scattering of a background object so that only the scattering of the background object can be detected by an outside observer and the hidden object disappears electromagnetically (a very weak ``ghost image'' or perturbation may appear inside the strong background object image in an experiment). The present method is essentially different from previous methods of cloaking an object. This work furthers efforts to achieve invisibility and conceal an object in a real environment in full space.
"A Third Way to Cloak an Object: Cover-Up with a Background Object (Invited Paper)," Progress In Electromagnetics Research,
Vol. 149, 173-182, 2014. doi:10.2528/PIER14100303
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