| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter module that is adaptable to multiband and can solve cross wiring to RF-IC.SOLUTION: A filter module 300 has: an antenna terminal 102; first and second transmission filters 121, 122; first and second reception filters 123, 124; a first switch circuit 111 and a second switch circuit 112 which are connected to the antenna terminal, the first switch circuit 111 being selectively connected to each of the first and second transmission filters 121, 122, and the second switch circuit 112 being selectively connected to each of the first and second reception filters 121, 122; a first matching circuit 131 which is connected between the first switch circuit 111 and the firs transmission filter 121 or between the second switch circuit 112 and the first reception filter 123; and a second matching circuit 132 which is connected between the first switch circuit 111 and the second transmission filter 122 or between the second switch circuit 112 and the second reception filter 124.SELECTED DRAWING: Figure 6 |
