Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"Coaxial Transmission Line"”.
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Micromachined microwave filters
… wave region demand low loss, and low dispersion transmission lines. The work carried out in this thesis is on low loss transmission lines and filters, based on a square coaxial transmission line which is made only of metal, avoiding dielectric and radiation losses. The metal structure inside the …
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Effect of Admixtures, Chlorides, and Moisture on Dielectric Properties of Portland Cement Concrete in the Low Microwave Frequency Range
… in a change in its dielectric properties. The coaxial transmission line is one of the few devices that can measure the dielectric properties of PCC at a frequency range of 100-1000 MHz. A coaxial transmission line developed at Virginia Tech was used to study the effect of moisture, type of …
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Characterization and deterioration detection of Portland cement concrete using electromagnetic waves over a wideband of frequency
… parallel plate capacitor (0.1-40 MHz), coaxial transmission line (100 MHz to 1 GHz), and TEM antenna (0.5-10 GHz). The setups were designed and built by engineers from the Civil and Electrical Engineering Departments at Virginia Tech as a part of the overall research study. Testing …