Experimental Characterization of a Broadband Transmission-Line Cloak in Free Space

Author

Alitalo, Pekka ; Culhaoglu, Ali E. ; Osipov, Andrey V. ; Thurner, Stefan ; Kemptner, Erich ; Tretyakov, Sergei A.

Author_Institution

Dept. of Radio Sci. & Eng., Aalto Univ., Aalto, Finland

Volume

60

Issue

10

fYear

2012

Firstpage

4963

Lastpage

4968

Abstract

The cloaking efficiency of a finite-size cylindrical transmission-line cloak operating in the X-band is verified with bistatic free space measurements. The cloak is designed and optimized with numerical full-wave simulations. The reduction of the total scattering width of a metal object, enabled by the cloak, is clearly observed from the bistatic free space measurements. The numerical and experimental results are compared resulting in good agreement with each other.

Keywords

electromagnetic wave scattering; invisibility cloaks; microwave propagation; numerical analysis; transmission line theory; X-band; bistatic free space measurements; broadband transmission-line cloak; cloaking efficiency; finite-size cylindrical transmission-line cloak; metal object; numerical full-wave simulations; total scattering width reduction; Antenna measurements; Electromagnetic scattering; Materials; Metals; Transmission lines; Transmitting antennas; Scattering; scattering cross section;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2207339

Filename

6236019