Patent ID: 6985052
Filing Date: 2006-01-10
Classification: H03H

Abstract:
1. A component operating with bulk acoustic waves, comprising: an acoustic mirror comprising an electrically conductive mirror layer that acts as a coupling layer; a signal path along which an electrical signal is guided; and a number N of resonators that are electrically connected to one another and each having a lower and an upper electrode, with n resonators, where 2≦n≦N-1, being arranged jointly and alongside one another on the acoustic mirror, the n resonators being coupled to one another via coupling capacitances that are formed: a) by lower electrodes of the n resonators, and b) by at least one of the coupling layer and further capacitively coupled electrically conductive mirror layers, with the n resonators being arranged and electrically connected to one another such that the coupling capacitance does not bridge any of the resonators in the signal path.