Invisibility cloaking or cloaking devices refer to a piece of garment or a device that can render a human being utterly invisible to the naked eye. Although invisibility cloaks seem like a concept of science fiction, they are now a reality. These cloaks can now be built by employing carefully

What is an Antenna? In order to understand metamaterial antenna, we first need to understand “what is an antenna?” An antenna is a device that radiates the signals in the form of electromagnetic (EM) energy in space. The traditional antennas are smaller in dimensions in comparison to their operational wavelength

Absorbers An absorber is a device that partially or completely absorbs the incoming light or an EM wave for which it is designed. Absorption is one of the three phenomena that can happen to light as it hits the object. When light falls on an object, depending on the complex