| 摘要 |
A first branching circuit is arranged between a first amplification circuit and a second branching circuit. In such a circuit arrangement, because the first branching circuit is spatially interposed between the first amplification circuit and the second branching circuit, no coupling (electromagnetic field coupling or electrostatic coupling) is prone to occur in the space between the path from the first amplification circuit to the first branching circuit and the path from a second antenna terminal via the second branching circuit to a second receiving terminal. As a result, even if a second harmonic of the transmission signal of a first transmitting and receiving unit occurs that is contained in the passband of the second branching circuit, coupling is not prone to occur in said space of the high-frequency module, so it is possible to suppress leakage of the second harmonic to the second receiving terminal and to improve isolation characteristics of the first band and the second band. |
