Fractal-based wideband invisibility cloak
Abstract
A wideband invisibility cloak (IC) at microwave frequencies is described. Using fractal resonators in closely spaced (sub wavelength) arrays as a minimal number of cylindrical layers (rings), the IC demonstrates that it is physically possible to attain a `see through' cloaking device with: (a) wideband coverage; (b) simple and attainable fabrication; (c) high fidelity emulation of the free path; (d) minimal side scattering; (d) a near absence of shadowing in the scattering. Although not a practical device, this fractal-enabled technology demonstrator opens up new opportunities for diverted-image (DI) technology and use of fractals in wideband optical, infrared, and microwave applications.
- Publication:
-
Benoit Mandelbrot: A Life in Many Dimensions. Edited by FRAME MICHAEL ET AL. Published by World Scientific Publishing Co. Pte. Ltd
- Pub Date:
- March 2015
- DOI:
- 10.1142/9789814366076_0009
- Bibcode:
- 2015bmlm.book..229C