Development of microwave and millimeter wave imaging systems has received significant attention in the past decade. Signals at these frequencies penetrate inside of dielectric materials and have relatively small wavelengths. Thus, imaging systems at these frequencies can produce images of the dielectric and geometrical distributions of objects. Although there are many different approaches for imaging at these frequencies, they each have their respective advantageous and limiting features (hardware, reconstruction algorithms). One method involves electronically scanning a given spatial domain while recording the coherent scattered field distribution from an object. Consequently, different reconstruction or imaging techniques may be used to produce an image (dielectric distribution and geometrical features) of the object. The ability to perform this accurately and fast can lead to the development of a rapid imaging system that can be used in the same manner as a video camera. This paper describes the design of such a system, operating at 24 GHz, using modulated scatterer technique applied to 30 resonant slots in a prescribed measurement domain.
M. T. Ghasr et al., "A Novel 24 GHz One-Shot, Rapid and Portable Microwave Imaging System," Proceedings of the IEEE Instrumentation and Measurement Technology Conference, 2008. IMTC 2008, Institute of Electrical and Electronics Engineers (IEEE), Jan 2008.
The definitive version is available at http://dx.doi.org/10.1109/IMTC.2008.4547336
IEEE Instrumentation and Measurement Technology Conference, 2008. IMTC 2008
Electrical and Computer Engineering
Marshall Space Flight Center
Keywords and Phrases
2D Array; Electric Field Distribution; Modulated Scatterer Technique; Resonant Slots; Microwave and Millimeter Wave Imaging
Library of Congress Subject Headings
Article - Conference proceedings
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