Patent ID: 9130504
Filing Date: 2015-09-08
Classification: H01P,H03B,H05H

Abstract:
1. An RF resonator comprising: a cylindrical cavity composed of a dielectric material, wherein the cavity comprises a first cylindrical portion, a second cylindrical portion and a dielectric ring connecting the first portion and the second portion, wherein an inner side of the first cylindrical portion has an electrically conductive first inner coating and an inner side of the second cylindrical portion has an electrically conductive second inner coating, wherein an electrically conductive first enclosed coating is arranged between the first cylindrical portion and the dielectric ring and an electrically conductive second enclosed coating is arranged between the second cylindrical portion and the dielectric ring, wherein the first enclosed coating is conductively connected to the first inner coating and the second enclosed coating is conductively connected to the second inner coating, and a voltage source provided for applying a radio-frequency electrical voltage between the first enclosed coating and the second enclosed coating.