Title :
Low scattering microwave cloaking by all-dielectric metamaterials
Author :
Wang, Xiaohui ; Chen, Fang ; Semouchkina, Elena
Author_Institution :
Dept. of Electr. & Comput. Eng., Michigan Technol. Univ., Houghton, MI, USA
Abstract :
The design of a cylindrical transmission cloak that provides low scattering cross width (SCW) at microwave frequencies is proposed. The cloak is composed of concentric layers of identical dielectric resonators (DRs), while different air fractions are employed to enable the required spatial dispersion of the effective permeability. The cloak performance has been investigated by using full-wave simulations of the true multi-resonator cloak structure. The simulations confirmed the existence of the cloaking band, in which the SCW of the cloaked target is lower than that of the bare target.
Keywords :
dielectric materials; dielectric resonators; electromagnetic wave scattering; invisibility cloaks; magnetic permeability; metamaterials; DR; air fractions; all-dielectric metamaterials; cloak performance; cloaking band; concentric layers; cylindrical transmission cloak design; dielectric resonators; effective permeability; full-wave simulations; low-scattering microwave cloaking; microwave frequencies; multiresonator cloak structure; scattering cross width; spatial dispersion; Dielectrics; Dispersion; Equations; Metamaterials; Permeability; Permittivity; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349310
