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 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, barricini chocolate 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 predictions.The proposed geometry is also shown to be pop smoke muscle 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.