Abstract
Abstract We investigate an analytical approach based on transmission line model to design mantle cloak for multilayer and/or inhomogeneous dielectric objects. Our proposed model is verified with different numerical results. The results matched well with each other. Also, the required impedance for making an inhomogeneous material invisible is calculated analytically. Finally, some complex structures are implemented using CST simulator and suitable performance is reached. So, it is proved that mantle cloak is applicable for making complex inhomogeneous materials invisible.
Highlights
The idea of making an object invisible based on transformation optics was first introduced by Pendry [1]
Plasmonic cloaks [8,9] and mantle cloaks [10] have been studied based on scattering cancelation, and as a result Frequency selective surface (FSS) is implemented to achieve cloaking at RF spectrum [10] while at terahertz graphene is utilized for making object invisible [11]
Experimental results have proven good performance of mantle cloak [14,15]. This type of cloak has been studied under illumination of plane wave [16] or line source [17]
Summary
The idea of making an object invisible based on transformation optics was first introduced by Pendry [1]. He acclaimed that the direction of incident waves can be controlled by means of coating metamaterials [1,2,3]. Experimental results have proven good performance of mantle cloak [14,15] This type of cloak has been studied under illumination of plane wave [16] or line source [17]. The required impedance for making this object invisible is calculated using the close form equation
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
