Abstract: In view of the defects of large size, high power consumption and high cost caused by the traditional super-heterodyne technology of satellite communication transceivers, a miniaturized satellite communication transceiver based on zero-intermediate frequency (zero-IF) technology is designed. The transceiver uses a zero-IF transceiver chip to convert, filter, and analog-digital convert (ADC)/digital-analog convert (DAC), and completes baseband signal processing in a low-power FPGA, thereby realizing S-band satellite communication transceiver processing. Experimental tests show that the transceiver can achieve error-free reception at −80 dBm, and EVM less than 1%, adjacent channel power leakage suppression less than −60 dBc, spurious suppression less than −60 dBc of the transmitted signals, and it can be used in portable, shipborne, vehicle and other satellite communication occasions.