Dual-band satellite communication simulation transponder with automatic gain adjustment function

The invention discloses a dual-band satellite communication analog transponder with an automatic gain adjustment function, which comprises a Ku conversion unit and a Ka conversion unit, each of which comprises a power adjustment module used for adjusting a received uplink signal; the first frequency conversion module processes the received uplink signal and outputs an intermediate frequency signal; the power detection module is used for performing power detection on the intermediate frequency signal; the gain adjusting module is used for processing the intermediate frequency signal and adjusting the gain; the second frequency conversion module is used for converting the adjusted intermediate frequency signal into a downlink signal; the beacon module is used for generating a beacon signal; the synthesis module is used for synthesizing the downlink signal and the beacon signal; the repeater further comprises a control module which is used for processing the received control and query instructions, sending the c