Microwave resonances in dielectric samples probed in Corbino geometry: simulation and experiment.

نویسندگان

  • M Maximilian Felger
  • Martin Dressel
  • Marc Scheffler
چکیده

The Corbino approach, where the sample of interest terminates a coaxial cable, is a well-established method for microwave spectroscopy. If the sample is dielectric and if the probe geometry basically forms a conductive cavity, this combination can sustain well-defined microwave resonances that are detrimental for broadband measurements. Here, we present detailed simulations and measurements to investigate the resonance frequencies as a function of sample and probe size and of sample permittivity. This allows a quantitative optimization to increase the frequency of the lowest-lying resonance.

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عنوان ژورنال:
  • The Review of scientific instruments

دوره 84 11  شماره 

صفحات  -

تاریخ انتشار 2013