| 摘要 |
PROBLEM TO BE SOLVED: To realize a communication circuit capable of communication in frequency division duplex and time division duplex with a smaller number of components.SOLUTION: A communication circuit comprises: an RFIC (20) that communicates signals with the outside in any one of FDD communication and TDD communication; a transmission filter (30) that lets a signal with a frequency f3 pass through in the case of the FDD communication and lets a signal with a frequency f5 pass through in the case of the TDD communication; and a reception filter (40) that lets a signal with a frequency f4 pass through in the case of the FDD communication and lets a signal with a frequency f5 pass through in the case of the TDD communication. |
