| 摘要 |
PROBLEM TO BE SOLVED: To reduce the size of a circuit to wireless communicate in both FDD and TDD and to reduce the cost of the circuit.SOLUTION: There is provided a wireless communication device including: a duplexer having a first terminal for inputting and outputting a signal of a first frequency band, a second terminal for inputting and outputting a signal of a second frequency band, and a third terminal connected to an antenna; a reception-system circuit processing a reception signal; a transmission-system circuit generating a transmission signal; and a switch connecting one of the first terminal and the second terminal to the reception-system circuit and connecting the other of the first terminal and the second terminal to the transmission-system circuit in a first mode, and connecting one of the first terminal and the second terminal to the reception-system circuit and the transmission-system circuit alternately in a second mode. |
