Experimental verification of broadband invisibility using a cloak based on inductor-capacitor networks

We demonstrate the experimental realization of all invisibility cloak based on inductor-capacitor (L-C) transmission line (TL) networks. The anisotropic medium parameters of it cloak in the cylindrical basis are controlled independently by three branches of the L-C unit cell, which leads to a full-parameter realization of the cloak. A cylindrical cloak working in very-high-frequency band has been designed and fabricated, with its performance measured. The nonresonant property of the TL Structure results in a relatively broad bandwidth (from 24 to 40 MHz) of the realized cloak. which is clearly observed In Our experiment. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3263149]