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The performance of simplified cylindrical cloaks with various material parameters was investigated. The performance metric was the overall scattering width of the cloak with various objects in the hidden region.

COMSOL was used to simulate three cloaks with different material parameters to determine the total field in the simulation domain. For all cloaks simulated in this effort, a PEC-lined cloak had equal or better performance compared to an unlined cloak no matter what type of object was placed in the hidden region. We also found that as the simplified cloaks' material parameters become more like ideal parameters, the performances of PEC-lined and unlined cloaks converges.