| 摘要 |
PROBLEM TO BE SOLVED: To reduce passage loss of a multiplexer and improve communication quality/communication speed/power consumption characteristic.SOLUTION: A mobile communication terminal for performing communication using K use frequency bands differing from each other, where K is an integer equal to or greater than 2, comprises: a multiplexer 20 including K filters 22, ..., 22whose band pass regions include any of the use frequency bands and whose passage losses are not uniform; an observation unit 30 for observing a communication state of each use frequency band; and a control unit 40 for controlling a frequency characteristic of at least one filter 22 under the condition that the band pass region includes the use frequency bands depending on the communication state. |
