| 摘要 |
To provide a transmitter wherein even in a case of sharing a detector circuit between or among a plurality of transmitting circuits, a high detection accuracy can be achieved without increasing the signal power to be inputted into the detector circuit. In a transmitter including a detector circuit (14) shared by transmitting circuits (1,2) that deal with signals of different frequency bands, a capacitor (C1), which constitutes an RF coupler disposed on an output signal line of the transmitting circuit (1), is directly connected to the input terminal of the detector circuit (14), while a capacitor (C2), which constitutes an RF coupler disposed on an output signal line of the transmitting circuit (2) dealing with signals of the lower frequency band than the transmitting circuit (1), is connected to the input terminal of the detector circuit (14) with a series combination of coils (L1,L2) inserted therebetween. |
