| 摘要 |
The present invention provides a single output channel-low noise amplifying apparatus for receiving a multi-mode mono pulse signal and an output method thereof. To this end, according to the present invention, when a basic mode signal and a high-order mode signal are inputted from an antenna device, the basic mode signal and the high mode signal are amplified lowering noise. Also, the frequency of the amplified high mode signal is changed, and the amplified basic mode signal and the frequency-changed high mode signal are combined to be outputted to a joint device through one output channel. After that, the joint device transmits the combined signal through one transmission channel, and the transmitted combined signal is divided into a basic mode signal and a high mode signal according to frequency by a signal dividing unit and processed. Therefore, according to the present invention, since an output channel of the low noise amplifier is simplified, structures of a rotary joint and a pedestal device including the same can be simplified. Therefore, an OTM satellite terminal can be more miniaturized and lightened. |
