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US 8,410,792 B2Granted
Resonator arrangement and method for analyzing a sample using the resonator arrangement
AssigneeForschungszentrum Juelich GmbH
InventorsNorbert Klein, Svetlana Vitusevich, Serhiy Danylyuk
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Abstract
A resonator arrangement has a conductive, semi-open outer housing, at an interior of which a conductive bar is provided disposed coaxially to the housing. At one end of the bar in a direction of a housing bottom, the bar has a die and, together with a dielectric and the housing bottom, forms a capacitor. The bar is short-circuited to the housing at another end, so that the bar and housing together form an LC oscillator circuit. Also disclosed is a method for analyzing a sample using a resonator arrangement.
Claims8
A resonator arrangement, comprising:
- a conductive, semi-open outer housing defining an interior cavity, and having a housing bottom forming a cavity bottom surface of the interior cavity, and the housing defining a cavity top opening communicating the interior cavity to an exterior surrounding;
- a conductive bar disposed coaxially with respect to the housing and in the interior cavity, the bar having a first end directed toward the cavity bottom surface and a second end directed toward the cavity top opening, and the bar having a disc at the first end which extends radially outward of the bar, the bar being short-circuited to the housing at the second end, so that the bar and housing together form an LC resonator circuit;
- a dielectric disposed between the cavity bottom surface and the disc so as to form a capacitor;
- a dielectric resonator disposed in the interior cavity and the conductive bar being led through the dielectric resonator;
- means for exciting a coaxial mode of the LC resonator circuit;
- and
- means for exciting a mode of the dielectric resonator.
4 more elements
A resonator arrangement, comprising:
- an LC resonator circuit;
- a dielectric resonator;
- means for exciting simultaneously a mode of the LC resonator circuit and a mode of the dielectric resonator;
- means for producing a spatially overlapping evanescent field outside of the resonator arrangement for both said simultaneously excited modes at a site of a sample;
- and
- means for determining dielectric relaxation and electric conductivity at the same time for analysis of the sample.
3 more elements
Dependencies are inferred from the claim text.