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Abstract: The
Fabry-Perot open resonator is widely recognized as a powerful tool for the measurement
of dielectric permittivity and loss tangent in low-loss materials at millimeter wave
frequencies. The measurement technique that yields the most precise data with this
instrument involves varying the length of the resonant cavity in steps as small as 10nm.
Achieving length variations of this ... read moremagnitude brings about many unique challenges that
often lead to corrupted data and introduction of error into dielectric measurements. A
novel signal processing technique has been developed to recover the assumed resonance
profile and extract information needed to measure permittivity and loss tangent.
Corrupted data was acquired using a 60GHz open resonator system on dielectric specimens
that had previously been measured. The signal processing technique was applied to this
data and produced measurements with similar accuracy as previously acquired uncorrupted
data. This method, when applied to uncorrupted data, will likely further improve the
precision of dielectric property
measurements.
Thesis (M.S.)--Tufts University,
2013.
Submitted to the Dept. of Electrical
Engineering.
Advisor: Mohammed
Afsar.
Committee: Douglas Preis, and Joshua
Wilson.
Keyword: Electrical
engineering.read less
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