TY - GEN
T1 - A novel system for real-time measurement of the electrical properties of a cavity resonator
AU - Hermann, Tobias
AU - Olbrich, Gerhard R.
AU - Russer, Peter
PY - 2008
Y1 - 2008
N2 - In this paper, we present a novel ultra-fast system for continuously monitoring the electrical parameters of a microwave cavity resonator, which can be used to assess the complex dielectric constant of a time-variant material sample within the resonator. The resonator is excited near a selected resonance mode by a digitally generated multisine signal. A receiver system using a Fast Fourier Transform (FFT), with a frequency bin spacing matched to that of the multisine signal, evaluates the resonator response for a number of frequency points in parallel. Using standard numerical curve fitting methods, the resonance frequency, resonance transmission gain and quality factor of the resonator are computed from the sampled frequency response. The complex dielectric constant of a material sample in the resonator can be calculated using these electrical parameters.
AB - In this paper, we present a novel ultra-fast system for continuously monitoring the electrical parameters of a microwave cavity resonator, which can be used to assess the complex dielectric constant of a time-variant material sample within the resonator. The resonator is excited near a selected resonance mode by a digitally generated multisine signal. A receiver system using a Fast Fourier Transform (FFT), with a frequency bin spacing matched to that of the multisine signal, evaluates the resonator response for a number of frequency points in parallel. Using standard numerical curve fitting methods, the resonance frequency, resonance transmission gain and quality factor of the resonator are computed from the sampled frequency response. The complex dielectric constant of a material sample in the resonator can be calculated using these electrical parameters.
UR - https://www.scopus.com/pages/publications/62349093294
U2 - 10.1109/EUMC.2008.4751388
DO - 10.1109/EUMC.2008.4751388
M3 - Conference contribution
AN - SCOPUS:62349093294
SN - 9782874870064
T3 - Proceedings of the 38th European Microwave Conference, EuMC 2008
SP - 67
EP - 70
BT - Proceedings of the 38th European Microwave Conference, EuMC 2008
T2 - 38th European Microwave Conference, EuMC 2008
Y2 - 27 October 2008 through 31 October 2008
ER -