| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wireless base station apparatus where it is not necessary to use a device of high specification, and where a product cost is reduced. <P>SOLUTION: An output of a mixer 117 is given to a selection switch 103, and it is selected, by the selection switch 103, whether to be given to a selection switch 105 of a latter stage as it is via a signal wiring SC, or given to the selection switch 105 after filtering via a filter part 104. A terminal A of the selection switch 105 is connected to a terminal A of the selection switch 103 via the signal wiring SC, and a terminal B of the selection switch 105 is connected to an output of the filter part 104. The selection switch 105 is switched so as to select the terminal A in the case where the output of the selection switch 103 is given to an amplifier 106 as it is, and is switched so as to select the terminal B in the case where the output filtered through the filter part 104 is given to the amplifier 106. <P>COPYRIGHT: (C)2012,JPO&INPIT |
