LAMINATED RF DEVICE WITH VERTICAL RESONATORS

摘要

The present invention relates to a resonator device having a stacked arrangement of laminated layers including a plurality of dielectric layers (3a, 3b, 3c), and at least one resonator (2) comprising a short-circuit electrode (4, 4'), a first capacitor electrode (5') and a second capacitor electrode (7). Each electrode (4, 4', 5', 7) comprises at least a portion (4', 5', 7) of a layer (4, 5, 7) of electrically conductive material provided on a surface of one of the dielectric layers (3a, 3b, 3c). The second capacitor electrode (7) is disposed spaced, in the stacking direction, from the short-circuit electrode (4, 4') and the first capacitor electrode (5'). The short-circuit electrode (4, 4') and the second capacitor electrode (7) are electrically interconnected by means of a first electrical connection comprising at least one via hole (8, 8a, 8b) penetrating one or more of the dielectric layers (3a, 3b, 3c).