A broadband simplified free space cloak realized
by nonmagnetic dielectric cylinders

doi:10.1007/s11467-010-0010-1

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Front. Phys. ›› 2010, Vol. 5 ›› Issue (3) : 319-323. DOI: 10.1007/s11467-010-0010-1

Research articles

A broadband simplified free space cloak realized by nonmagnetic dielectric cylinders

Di BAO(鲍迪)¹,Efthymios KALLOS¹,Wen-xuan TANG(汤文轩)¹,Christos ARGYROPOULOS¹,Yang HAO(郝阳)¹,Tie-jun CUI(崔铁军)²,

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Abstract

In this paper, the properties of cylindrical high permittivity dielectric particles are studied. A design for broadband reduction of the scattering signature of metallic objects is proposed by implementing simplified ground-plane cloaking schemes. The devices are functional in the presence of a ground plane as well as in free space ranging from 4 GHz to 10 GHz. The required dielectric map for the cloak is achieved by means of manipulating the dimensions of the periodically distributed dielectric cylinders embedded in a host medium with a permittivity close to one. The scattering reduction effects are verified through simulation results. The proposed all dielectric cloaks are advantageous over other schemes due to their non-dispersive nature, the broad bandwidth, the low loss, and the ease of fabrication.

Keywords

cloak / dielectric cylinders / FFT / gradient index material

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Di BAO(鲍迪), Efthymios KALLOS, Wen-xuan TANG(汤文轩), Christos ARGYROPOULOS, Yang HAO(郝阳), Tie-jun CUI(崔铁军),. A broadband simplified free space cloak realized by nonmagnetic dielectric cylinders. Front. Phys., 2010, 5(3): 319‒323 https://doi.org/10.1007/s11467-010-0010-1