Patent ID: 9118302
Filing Date: 2015-08-25
Classification: H03H,H04B

Abstract:
1. A filter module comprising: an antenna terminal; a first transmission filter having a transmission passband in a first band; a second transmission filter having a transmission passband in a second band; a first reception filter having a reception passband in the first band; a second reception filter having a reception passband in the second hand, at least one of the respective passbands of the first transmission filter and the first reception filter overlapping the respective passband of one of the second transmission filter and the second reception filter; a first switch circuit electrically connected to the antenna terminal and to respective switch side terminals of the first transmission filter and the second transmission filter; a second switch circuit electrically connected to the antenna terminal and to respective switch side terminals of the first reception filter and the second reception filter; and a first matching circuit electrically connected to the respective switch side terminal of a one of the first transmission filter and the first reception filter having a passband that overlaps the respective passband of one of the second transmission filter and the second reception filter to a lesser extent than the respective passband of the other one of the first transmission filter and the first reception filter, the respective switch side terminal of the other one of the first transmission filter and the first reception filter not being connected to any matching circuit.