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    A Directional Antenna in a Matching Liquid for Microwave Radar Imaging

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    IJAP.2015.751739.pdf (1.366Mb)
    Date
    2015-11-10
    Author
    Latif, Saeed I.
    Flores Tapia, Daniel
    Rodriguez Herrera, Diego
    Solis Nepote, Mario
    Pistorius, Stephen
    Shafai, Lotfollah
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    Abstract
    The detailed design equations and antenna parameters for a directional antenna for breast imaging are presented in this paper. The antenna was designed so that it could be immersed in canola oil to achieve efficient coupling of the electromagnetic energy to the breast tissue. Ridges were used in the horn antenna to increase the operating bandwidth. The antenna has an exponentially tapered section for impedance matching. The double-ridged horn antenna has a wideband performance from 1.5 GHz to 5 GHz (3.75 GHz or 110% of impedance bandwidth), which is suitable for breast microwave radar imaging. The fabricated antenna was tested and compared with simulated results, and similar bandwidths were obtained. Experiments were conducted on breast phantoms using these antennas, to detect a simulated breast lesion. The reconstructed image from the experiments shows distinguishable tumor responses indicating promising results for successful breast cancer detection.
    URI
    http://dx.doi.org/10.1155/2015/751739
    http://hdl.handle.net/1993/30948
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    • Faculty of Science Scholarly Works [209]
    • University of Manitoba Scholarship [2009]

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