The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A flexible low-scattering metasurface is presented in the paper. By randomly distributing various dimensional elements along the surface, the proposed design can mimic a diffuse reflection surface, achieving a broadband backward low-scattering property. Through optimization, flexible samples composed of metallic-element-printed film and flexible substrate are designed, fabricated and measured in microwave...
Dynamic control of electromagnetic (EM) wave propagation (both the amplitude and phase) is essential to many practical applications. The recently developed two dimensional metamaterial — the metasurface, provides more convenient method to manipulate EM wave in a designable way within subwavelength distance. Here we incorporate electrical tunable elements into the metasurface designs to realize dynamic...
Analyzing frequency selective surface (FSS) can be of great significance. FSS can present band-stop or band-pass properties at some specific frequency bands, and this is very helpful in designing practical electromagnetic and communication systems. The application of method of moments (MoM) in this field is very popular. However, when the electric size of FSS increases, huge in-core memory requirement...
The control of electromagnetic wave propagation is an important issue in either fundamental electromagnetic research or device application technologies. In this presentation we incorporate the active element into the metasurface concept to achieve dynamic control of electromagnetic wave reflection. We will present the application of active metasurfaces to the control of the polarization and phase...
In this paper, a flat meta-surface constructed by an ensemble of unit cells using I shaped resonant structure is proposed and designed to provide phase discontinuity for electromagnetic wave front manipulation. We demonstrate experimentally that electromagnetic wave deflection is achieved in compliance with the generalized Snell's law at the designed frequency band (around 10 GHz). In addition, the...
In this presentation, we demonstrate an approach to manipulate electromagnetic waves with different polarizations through a controllable metamaterial absorber. The metamaterial absorber designed at 3.3 GHz is proposed by properly integrating resonant unit cells with orthogonal polarization sensitivity onto a dielectric substrate and coupling the unit cells with microwave diodes. Simulation and measurement...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.