Abstract:S-band UWB anti-jamming transceiver channel is the core equipment of airborne terminal of satellite communication system,The anti-interference capability of its channel directly affects the performance of the whole system. The key to improve the anti-interference ability of communication system by means of frequency-hopping technology is to increase the frequency hopping speed and expand the frequency hopping band width. Therefore, the performance indexes of UWB channel, such as spurious, gain flatness, carrier low phase noise, fast frequency conversion speed, are very important. A broadband transceiver channel with secondary frequency conversion is designed based on traditional universal chip. By switching mixing local oscillator, segmented switching filter and multi-channel integration design. The key technical indexes of UWB channel such as low spurious (58 dBc), low phase noise and high speed frequency hopping are realized and it is verified in practical engineering application.