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A general approach for calculating tip–sample capacitance variation in near-field scanning microwave microscopy is presented. It can be applied to arbitrary tip shapes, thick and thin films, and variation due to inhomogeneous perturbation. The computation domain for the tip–sample interaction problem is reduced to a block perturbation area by applying Green’s theorem, and thus it can save substantial...
Incomplete measurement aperture, presence of large fatty tissues, huge number of unknowns, etc., make reconstruction of the breast tumors very difficult using a single technique. This paper shows breast tumor detection method that complements the contemporary diffusion optical tomography technique with microwave imaging technique to robustly reconstruct multiple breast tumors in the presence of several...
A microwave imaging approach based on the integration of a subspace-base optimization method (SOM) and a multi-focusing procedure is proposed. The scattering equations are expressed within the contrast source formulation of the electromagnetic inverse problem and then solved by a nested procedure which includes an outer multi-resolution loop (dealing with the identification of the regions of interest),...
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