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Reza Zoughi |
Topic:
Recent Advances in High-Resolution Microwave and Millimeter Wave Imaging for Nondestructive Testing Applications |
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In the past two decades complex composite structures have seen a marked increase in their utility in a wide range of applications encompassing surface transportation, aerospace, construction, power generation, utilities, maritime, and numerous others. Some of these structures may be composed of several layers of different dielectric materials such as glass-fiber reinforced polymer (GFRP), foam, balsa wood and ceramics. The inspection of these composites may present serious challenges to standard nondestructive......MORE |
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Lluís Jofre |
Topic:
Near Field RFID Sensing and Imaging |
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is a growing need for designing small self-powered devices, able
to sense and deliver accurate information on the field
distribution around or inside complex media for monitoring and
imaging purposes. Industrial, Scientific and Medical sensing and
imaging applications basically rely on the measurement of the
diffracted field distribution created by an illuminating field.
In most of the cases this field distribution is measured on a
set of “accessible checking points” using either an array of
probes or a moving probe.....MORE |
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Jean-Charles Bolomey |
Topic:
REVIEW OF
PHASELESS NEAR-FIELD TECHNIQUES |
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Usually, Near-Field processing
algorithms assume that the phase of the Near Field data is
known. Accordingly, Near-Field measurement is often achieved
with a network analyzer. However, it is well known that
amplitude/phase measurements require more efforts and are more
expensive than amplitude only measurements. Furthermore, in many
applications of practical relevance, phase measurements are
difficult to be done with a sufficient accuracy or even
impossible, depending on the time dependence of the wave
radiated by the device under test. When the transmitted wave
cannot be controlled, as in the case of integrated active
antennas (e.g. radars, mobile phones, RFID systems…), or when
the frequency is unstable (e.g. HPM sources) or, more
generally.....MORE |
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