| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a transmitter which can use a power amplifier for a plurality of transmission signals in common and be miniaturized at a low cost. <P>SOLUTION: The transmitter 2 is composed by connecting a power amplifying module 4 to an output side of a transmission signal generator 3. The power amplifying module 4 is composed by connecting a filter circuit 6, a power amplifier 9, a power detector 19, and an isolator 21 between an input-side switch 5 and an output-side switch 22. Thereby the power amplifying module 4 can amplify and output both of the first and the second transmission signals TX1 and TX2, and can use the power amplifier 9 or the like for these transmission signals in common. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
