Near-field microwave imaging utilizing tapered rectangular waveguides

Nasser Qaddoumi, Mohamed Abou Khousa, Wael Saleh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Open-ended rectangular waveguides have been used conventionally as imaging probes in the measurement systems developed for near-field microwave nondestructive evaluation (NDE) purposes. These systems have attained an increasing interest as they have proved to be competent in wide spectrum of applications - i.e. imaging of subsurface inclusions in composite structures. The lateral resolution of these probes, and hence the quality of the captured images, is inversely proportional to the electrical area of the waveguide aperture. In order to obtain images of high fidelity for small sized concealed entities, the resolution of the rectangular waveguide probes should be enhanced. In this paper, it will be shown that smoothly tapering the waveguide's aperture in the E-plane significantly improves the spatial resolution of the imaging system. The potential of the proposed probe on the quality of the captured images will be demonstrated in real-life NDE problem. Furthermore, the resolution of the new probe will be compared to that of the conventional one.

Original languageBritish English
Title of host publicationProceedings of the 21st IEEE Instrumentation and Measurement Technology Conference, IMTC/04
EditorsS. Demidenko, R. Ottoboni, D. Petri, V. Piuri, D.C.T. Weng
Pages174-177
Number of pages4
DOIs
StatePublished - 2004
EventProceedings of the 21st IEEE Instrumentation and Measurement Technology Conference, IMTC/04 - Como, Italy
Duration: 18 May 200420 May 2004

Publication series

NameConference Record - IEEE Instrumentation and Measurement Technology Conference
Volume1
ISSN (Print)1091-5281

Conference

ConferenceProceedings of the 21st IEEE Instrumentation and Measurement Technology Conference, IMTC/04
Country/TerritoryItaly
CityComo
Period18/05/0420/05/04

Keywords

  • Lateral resolution
  • Microwave nondestructive testing
  • Near-field microwave imaging
  • Tapered waveguides

Fingerprint

Dive into the research topics of 'Near-field microwave imaging utilizing tapered rectangular waveguides'. Together they form a unique fingerprint.

Cite this