표 1. | Table 1. SAR 탑재체 송수신 장치의 역할 | The function of RF unit on SAR payload.

Functional definition on RF unit
Transmitter

․Frequency up-conversion

․Bandwidth stretching

․Driving RF input power for antenna

Receiver

․Frequency selection

․Frequency down-conversion

․Gain control following operating mode

Frequency synthesizer

․ADC/DAC clock generation from STALO

․LO generation for down conversion