Sub-wavelength Microwave Imaging by a Slab of Wire Medium

Author

Belov, Pavel A. ; Hao, Yang ; Sudhakaran, Sunil

Author_Institution

Dept. of Electron. Eng., London Queen Mary Univ.

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

1331

Lastpage

1332

Abstract

A device capable to transmit images with sub-wavelength resolution is proposed in this paper. The structure is formed by an array of parallel conducting wires (wire medium) and effectively operates as a telegraph which captures a distribution of the electric field at the front interface and transmits it to the back side without distortions. This regime of operation is called canalization and is inherent in flat lenses formed by electromagnetic crystals. The theoretical estimations are supported by numerical simulations and experimental verification. The sub-wavelength resolution of lambda/15 and 18% bandwidth of operation are demonstrated at gigahertz frequencies. The structure is capable to transport sub-wavelength images without distortion to nearly unlimited distances

Keywords

conducting materials; electric fields; microwave imaging; wires (electric); canalization; electric field; electromagnetic crystals; parallel conducting wires; subwavelength microwave imaging; subwavelength resolution; wire medium; Crystals; Estimation theory; Image resolution; Irrigation; Lenses; Microwave devices; Microwave imaging; Slabs; Telegraphy; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281261

Filename

4058077