Title :
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
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2207339
