Title :
Experimental Study of the Subwavelength Imaging by a Wire Medium Slab
Author :
Belov, Pavel A. ; Zhao, Yan ; Alomainy, Akram ; Hao, Yang
Author_Institution :
Dept. of Electron. Eng., Queen Maty Univ. of London
Abstract :
An experimental investigation of sub-wavelength imaging by a wire medium slab is performed. A complex-shaped near field source is used in order to test imaging performance of the device. It is demonstrated that the ultimate bandwidth of operation of the constructed imaging device is 4.5% that coincides with theoretical predictions [Phys. Rev. E 73, 056607 (2006)]. Within this band the wire medium slab is capable of transmitting images with lambda/15 resolution irrespectively of the shape and complexity of the source. Actual bandwidth of operation for particular near-field sources can be larger than the ultimate value and it strongly depends on the configuration of the source.
Keywords :
wire antennas; complex-shaped near field source; subwavelength imaging; wire medium slab; Bandwidth; Frequency; Geometry; Image resolution; Metamaterials; Reflection; Shape; Slabs; Testing; Wire;
Conference_Titel :
Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007. IWAT '07. International Workshop on
Conference_Location :
Cambridge
Print_ISBN :
1-4244-1088-6
Electronic_ISBN :
1-4244-1088-6
DOI :
10.1109/IWAT.2007.370173
