Scattering suppression and wideband tunability of a flexible mantle cloak for finite-length conducting rods

Scattering suppression and wideband tunability of a flexible mantle cloak for finite-length conducting rods

Blog Article

A simple, thin, flexible mantle cloak for conducting Crank Link rods based on scattering cancellation is analyzed, designed and experimentally realized.We show strong scattering suppression at all angles of incidence, for both far-field plane-wave and near-field Gaussian excitations.The required effective shunt surface impedance is realized by a subwavelength patch array, targeting the suppression of the dominant omnidirectional scattering contribution of a conductive rod.Full-wave simulations predict a total radar cross-section reduction better than 14 dB in the lossless case and nearly 8 dB when considering a lossy substrate in the cover.Measurements of the realized cloak are consistent and validate these numerical Advanced Wound Care - Impregnated Dressings predictions.

The proposed geometry is also shown to be an ideal platform for monolithic integration of varactor diodes, allowing real-time tuning of the effective surface capacitance of the cloak.We show with numerical simulations the possibility of tunable scattering suppression over 1 GHz of bandwidth by seamlessly integrating varactor diodes in our mantle cloak design.