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This paper introduces and analyzes a novel 3-D microwave imaging chamber composed of a number of intersecting flat metallic facets that form a hemiellipsoid. Synthetic studies demonstrate that the faceted chamber geometry provides advantages in modeling error reduction and reconstruction quality at a greater number of frequencies than a comparable cylindrical chamber. The experimental chamber is introduced...
The development of a 3D Microwave Imaging system for breast cancer detection is described. The system is comprised of twenty four magnetic field probes mounted in an air-filled faceted resonant chamber. Simulations of the system are detailed, and the ability to image a simplified four region breast phantom using appropriate prior information is demonstrated. Inversion of the data was performed by...
Adopting microwave imaging (MWI) for breast cancer detection has been of interest to researchers around the globe due to its use of non-ionizing radiation, low cost and potential portability.
Biomedical microwave tomography (BMWT) is a soft-tissue imaging modality that uses microwave radiation for reconstructing permittivity and conductivity profile of biological targets, also referred to as the complex dielectric profile. In BMWT an array of antennas surround the tissue and illuminate it successively, while the remaining antennas collect the field scattered by the tissue. The collected...
We introduce a novel system for collecting near-field scattering data. The system utilizes a combination of rectangular waveguides and printed-circuit-boards, consisting of several field collection slots. Data collection is based on the modulated scattering technique. A prototype system using four waveguides was fabricated and tested in both air and water. Simulation and measurement results show that...
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