Title : 
Metallic transmission screen for sub-wavelength focusing
         
        
            Author : 
Wong, A.M.H. ; Sarris, C.D. ; Eleftheriades, G.V.
         
        
            Author_Institution : 
Univ. of Toronto, Toronto
         
        
        
        
        
        
        
            Abstract : 
A simple metallic transmission screen is proposed that is capable of focusing an incident plane wave into a sub-wavelength spot in the near field. The principle of operation is inspired by holographic concepts applied to the near-field. A corresponding design procedure is described and supporting full-wave simulation results are provided.
         
        
            Keywords : 
electromagnetic wave transmission; focusing; electromagnetic waves focusing; full-wave simulation; holographic concepts; incident plane wave; metallic transmission screen; near field; sub-wavelength focusing;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:20072315