CST – Computer Simulation Technology

Broadband cloaking using composite dielectrics

Title:
Broadband cloaking using composite dielectrics
Author(s):
Ruey-Bing Hwanga, Cheng-Yuan Chin
Source:
AIP Advances
Vol./Issue/Date:
Volume: 1, Issue: 1, 14 Februar 2011
Year:
2011
Page(s):
012112-1 - 012112-8
Abstract:
In this paper, we present a novel cloaking structure that is able to make a metallic block invisible in a metallic waveguide. Such a cloak is made up of a stack of commonly used dielectric slabs. We carry out the numerical simulation and observe the detour of the vector Poynting power through the cloak. Moreover, the experiment is conducted for measuring the scattering characteristics including the reflection and transmission coefficients. The great improvement in the transmission coefficient in a broad bandwidth after cloaking is demonstrated. Significantly, the theory of mode conversion is developed for explaining the cloaking phenomenon.
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