Gradient index transmission cloak composed of arrays of dielectric elements

Author

Duan, Ran ; Semouchkina, Elena ; Pandey, Ravi

Author_Institution

Dept. of Phys., Michigan Technol. Univ., Houghton, MI, USA

fYear

2012

fDate

8-14 July 2012

Firstpage

1

Lastpage

2

Abstract

A 2D microwave transmission cloak composed of periodically arranged dielectric cylinders is designed and investigated by using full-wave simulations. It is shown that manipulating the periodicity of the dielectric elements can be used to provide the refractive index distribution required for bending waves around the concealed object. A possibility for obtaining the desired curvilinear wave paths in the cloak is confirmed by the simulated field patterns. The proposed all-dielectric cloak design is expected to provide low loss and broadband operation, since its performance is not related to resonance phenomena.

Keywords

dielectric materials; invisibility cloaks; refractive index; 2D microwave transmission cloak; all-dielectric cloak design; bending waves; broadband operation; concealed object; curvilinear wave paths; dielectric element arrays; dielectric element periodicity; full-wave simulations; gradient index transmission cloak; periodically-arranged dielectric cylinders; refractive index distribution; Broadband communication; Dielectrics; Microwave theory and techniques; Optical refraction; Optical resonators; Optical variables control; Refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE

Conference_Location

Chicago, IL

ISSN

1522-3965

Print_ISBN

978-1-4673-0461-0

Type

conf

DOI

10.1109/APS.2012.6349311

Filename

6349311