Patent ID: 9252476
Filing Date: 2016-02-02
CPC Classification: H01P,H03H,H04M,H05K

Claim Text:
1. A circuit module comprising: a splitter that includes a transmission filter and a reception filter with different pass bands from each other; and a mounting substrate on which the splitter is mounted; wherein the splitter includes a transmission terminal that allows input to the transmission filter, a reception terminal that allows output from the reception filter, and a ground terminal; the mounting substrate includes a transmission electrode that is connected to the transmission terminal, a reception electrode that is connected to the reception terminal, and a ground electrode that is arranged between the transmission electrode and the reception electrode when viewed in plan and is connected to the ground terminal; a plurality of via conductors are connected to the ground electrode along an edge portion of the ground electrode that is close to the transmission electrode when viewed in plan; and the mounting substrate includes a plurality of dielectric layers, and a layer of the plurality of dielectric layers at which the ground electrode is provided is different from a layer of the plurality of dielectric layers at which the transmission electrode, the reception electrode, and the common electrode are provided.