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Portable, accurate, and relatively inexpensive high-frequency vector network analyzers (VNAs) have great utility for a wide range of applications, encompassing microwave circuit characterization, reflectometry, imaging, material characterization, and nondestructive testing to name a few. To meet the rising demand for VNAs possessing the aforementioned attributes, we present a novel and simple VNA...
This paper is focused on utilizing short-range wideband FMCW radar measurements to evaluate multilayered dielectric structures. The performance of the MUSIC algorithm in resolving closely-spaced spectral lines corresponding to adjacent boundaries within such structures is investigated experimentally.
Microwave and mm-wave reflectometry is one of the potential techniques for diagnosis of human skin for detection of diseases such as skin cancer. It is shown that using an open-ended waveguide probe, non-contact measurements of the reflection properties of skin may be conducted leading to distinction between dielectric properties of normal and diseased skin. This technique can then be extended into...
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