A method for composite signal single cable transmission
A composite signal, single-cable technology, applied in the transmission system, electrical components and other directions, can solve the problems such as the method of single-cable transmission signal transmission of the transceiver, which is simple in laying and connection, convenient in erection and good in use performance. Effect
Active Publication Date: 2013-05-08
PANDA ELECTRONICS GROUP +2
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Problems solved by technology
At present, there is no method for transmitting signals with a single cable for transceivers
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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.
Description
A method for composite signal single cable transmission Technical field [0001] The present invention relates to a method for transmitting a composite signal through a single radio frequency coaxial cable. especially short A single radio frequency coaxial cable transmission method used by wave communication equipment. Background technique In short-wave communication equipment at present, the connection of transceiver and external antenna tuner mainly contains radio frequency signal, Control signal and DC power signal, where the RF signal is transmitted through the RF coaxial cable, and the control signal is in the form of data Transmission via low frequency cables, DC signals are directly connected via low frequency cables. This connection method has the following problems: First of all, there are many connecting cables, and it is difficult to use and set up; secondly, it is directly connected by wired cables, especially the control When the control data signal and ...
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IPC IPC(8): H04B1/40
Inventor 周文伟陈乐民杨鹏飞
Owner PANDA ELECTRONICS GROUP
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