Patent ID: 8410792

Claim:
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.