Patent ID: 9160307
Filing Date: 2015-10-13
Classification: H03H,H04B,H05K

Abstract:
1. A duplexer module comprising: a mount board that includes a mount electrode layer, an internal electrode layer, a terminal electrode layer, and at least one dielectric layer stacked on each other such that the mount electrode layer is located on a topmost side and the terminal electrode layer is located on a bottommost side and such that the mount electrode layer and the internal electrode layer oppose each other with the at least one dielectric layer therebetween; and at least one duplexer that is mounted on a front surface of the mount board and that includes first and second balanced terminals; wherein the mount electrode layer includes a first balanced mount electrode, which is connected to the first balanced terminal, and a second balanced mount electrode, which is connected to the second balanced terminal; the internal electrode layer includes at least one internal ground electrode; when viewing the mount board from the topmost side on which the duplexer is mounted in a stacking direction of the mount electrode layer, the internal electrode layer, the terminal electrode layer, the first and second balanced mount electrodes do not overlap the same internal ground electrode; and when viewing the mount board from the topmost side on which the duplexer is mounted, at least one of the first and second balanced mount electrodes does not oppose the internal ground electrode.