A dielectric probe for near-field millimeter-wave imaging

Author

Hanham, S.M. ; Gregory, A. ; Maier, S.A. ; Klein, N.

Author_Institution

Dept. of Phys., Imperial Coll. London, London, UK

fYear

2012

fDate

23-28 Sept. 2012

Firstpage

1

Lastpage

2

Abstract

A dielectric probe for performing near-field imaging in the millimeter-wave band is presented. The probe consists of a rectangular slab of low-loss dielectric material which is metalized on two sides and sharpened to a point of approximately 20 μm. This structure forms a parallel-plate waveguide which offers broadband operation and strong field enhancement and localization at the tip with a spatial resolutions of λ/250. A method of exciting the probe using a metal rectangular cavity resonator is also described.

Keywords

cavity resonators; dielectric materials; millimetre wave imaging; broadband operation; dielectric probe; low-loss dielectric material; metal rectangular cavity resonator; millimeter-wave band; near-field millimeter-wave imaging; parallel-plate waveguide; rectangular slab; strong field enhancement; Cavity resonators; Dielectrics; Imaging; Millimeter wave technology; Probes; Resonant frequency; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Conference_Location

Wollongong, NSW

ISSN

2162-2027

Print_ISBN

978-1-4673-1598-2

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/IRMMW-THz.2012.6380378

Filename

6380378