A method for composite signal single cable transmission

A method for single-cable transmission of composite signals. In the transceiver, the DC filter, the high-pass filter and the low-pass filter are multiplexed, and the DC voltage in the transceiver is passed through the DC filter and through the DC blocking capacitor. The control signal enters the low-pass filter together. After the low-pass filter, the DC voltage and the control signal are combined together, and then combined with the RF signal passing through the high-pass filter to form a composite signal. Finally, the output of the high-pass filter passes through a radio frequency cable. It is transmitted to the antenna tuner; after the antenna tuner receives the composite signal, the RF signal is filtered out by a high-pass filter and sent to the corresponding high-frequency circuit, and the DC voltage and control signal are filtered out by a low-pass filter, and then the The DC voltage and the control signal are separately provided to the corresponding low-frequency circuit through the DC blocking capacitor and the DC filter, wherein the control signal and the radio frequency signal are bidirectional.