An Object-Independent ENZ Metamaterial-Based Wideband Electromagnetic Cloak

An Object-Independent ENZ Metamaterial-Based Wideband Electromagnetic Cloak

A new, metamaterial-based electromagnetic cloaking operation is proposed in this study. The metamaterial exhibits a sharp transmittance in the C-band of the microwave spectrum with negative effective property of permittivity at that frequency. Two metal arms were placed on an FR-4 substrate to construct a double-split-square shape structure. The size of the resonator was maintained to achieve t...

Electromagnetic wave interactions with a metamaterial cloak.

We establish analytically the interactions of electromagnetic wave with a general class of spherical cloaks based on a full wave Mie scattering model. We show that for an ideal cloak the total scattering cross section is absolutely zero, but for a cloak with a specific type of loss, only the backscattering is exactly zero, which indicates the cloak can still be rendered invisible with a monosta...

Metamaterial electromagnetic cloak at microwave frequencies.

A recently published theory has suggested that a cloak of invisibility is in principle possible, at least over a narrow frequency band. We describe here the first practical realization of such a cloak; in our demonstration, a copper cylinder was "hidden" inside a cloak constructed according to the previous theoretical prescription. The cloak was constructed with the use of artificially structur...

Vaihingen/Enz: An Independent Performance Study

The use of test sites in photogrammetry is well known and mainly applied for the following two applications: Test sites are necessary within the sensor calibration process, especially when in-situ calibration methodologies are taken place. This topic especially gains in importance when the new and more complex digital airborne sensor systems are considered. On the other hand, test fields provid...

Metamaterial-Based Cylinders Used for Invisible Cloak Realization