A Tomograph Prototype for Quantitative Microwave Imaging: Preliminary Experimental Results

A new prototype of a tomographic system for microwave imaging is presented in this paper. The target being tested is surrounded by an ad-hoc 3D-printed structure, which supports sixteen custom antenna elements. The transmission measurements between each pair of antennas are acquired through a vector...

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Bibliographic Details
Published in:Journal of imaging 2018, Vol.4 (12), p.139
Main Authors: Fedeli, Alessandro, Maffongelli, Manuela, Monleone, Ricardo, Pagnamenta, Claudio, Pastorino, Matteo, Poretti, Samuel, Randazzo, Andrea, Salvadè, Andrea
Format: Article
Language:English
Subjects:
Algorithms
Antennas
Calibration
Dielectric properties
Electric fields
Image reconstruction
inverse problems
Mathematical analysis
microwave imaging
Network analysers
Prototypes
Qualitative analysis
Supports
Three dimensional printing
tomography
Universal Serial Bus
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Summary:A new prototype of a tomographic system for microwave imaging is presented in this paper. The target being tested is surrounded by an ad-hoc 3D-printed structure, which supports sixteen custom antenna elements. The transmission measurements between each pair of antennas are acquired through a vector network analyzer connected to a modular switching matrix. The collected data are inverted by a hybrid nonlinear procedure combining qualitative and quantitative reconstruction algorithms. Preliminary experimental results, showing the capabilities of the developed system, are reported.
ISSN:2313-433X
2313-433X
DOI:10.3390/jimaging4120139