Title :
Sub-wavelength imaging by a wire medium slab: experiment
Author :
Belov, Pavel A. ; Zhao, Yan ; Sudhakaran, Sunil ; Hao, Yang
Author_Institution :
Queen Mary Univ. of London, 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 but it strongly depends on the configuration of the source.
Keywords :
microwave imaging; slabs; complex shaped near field source; sub wavelength imaging; test imaging performance; wire medium slab; Bandwidth; Frequency; Image resolution; Metamaterials; Probes; Reflection; Shape; Slabs; Testing; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395523
