Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 10, Issue -, Pages 1598-1601Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2011.2179001
Keywords
Cloaking and invisibility; helical sheath; metasurfaces; scattering cancellation
Funding
- NSF [ECCS-0953311]
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Following our recent findings on achieving invisibility and transparency using low-profile mantle cloaks, we propose a practical implementation of an RF cloak made of a simple metallic helical sheath, whose anisotropic surface impedance can provide scattering cancellation for dielectric cylinders over a moderately broad bandwidth. By properly selecting the pitch angle of the conducting helix, the effective surface reactance is tailored to drastically suppress the scattering from a dielectric infinite cylinder. This simple but effective surface cloaking technique may be of particular interest to low observability and camouflaging, noninvasive probing, and low-interference communications.
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