| 摘要 |
A switchable diplexer, disposed in a cable modem, comprises a control node configured to receive a control signal, a plurality of filter circuits and a first switch element. At least one of the plurality of filter circuits is operated in a frequency band different from the frequency bands of the other in the plurality of filter circuits. The first switch element is coupled between the control node and one end of each of the plurality of filter circuits. The first switch element switches between the plurality of filter circuits according to the control signal. |
