Patent ID: 7412210

Claim:
A high frequency module comprising: a first antenna terminal and a second antenna terminal that are connected to separate antennas; a first reception signal terminal for outputting a reception signal in a first frequency band; a second reception signal terminal for outputting a reception signal in a second frequency band higher than the first frequency band; a first transmission signal terminal for receiving a transmission signal in the first frequency band; a second transmission signal terminal for receiving a transmission signal in the second frequency band; a switch circuit connected to the first and second antenna terminals; a first diplexer connected to the first and second reception signal terminals and the switch circuit and separating the reception signal in the first frequency band and the reception signal in the second frequency band from each other; a second diplexer connected to the first and second transmission signal terminals and the switch circuit and separating the transmission signal in the first frequency band and the transmission signal in the second frequency band from each other; and a layered substrate including dielectric layers and conductor layers alternately stacked and integrating the foregoing components, wherein: the switch circuit is provided for connecting one of the first and second diplexers to one of the first and second antenna terminals; the first and second diplexers are provided inside the layered substrate; the foregoing terminals are located on a surface of the layered substrate; the layered substrate includes a first region and a second region that are divided from each other by an imaginary plane that passes through a center of a bottom surface of the layered substrate and that intersects the bottom surface of the layered substrate at a right angle; the first diplexer, the first antenna terminal, the first reception signal terminal and the second reception signal terminal are located in the first region; the second diplexer, the second antenna terminal, the first transmission signal terminal and the second transmission signal terminal are located in the second region; and locations of the first and second antenna terminals, locations of the first reception signal terminal and the first transmission signal terminal, and locations of the second reception signal terminal and the second transmission signal terminal are symmetric, respectively, with respect to the imaginary plane.