The embodiment of the invention discloses an antenna system, which includes an integrated transceiver active antenna, a radio frequency cable feed unit, power supply equipment and the like. The space diversity active antenna system uses space diversity reception to increase the uplink reception gain, coupled with uplink active amplification, further improves the uplink reception, thereby greatly improving the uplink and making the uplink and downlink balance, It is beneficial to give full play to the performance of the base station, improve the coverage of the base station, and improve the performance of the base station system. Moreover, the space-diversity active antenna adopts an integrated design, integrating the active part into the antenna, which is consistent with the traditional passive antenna in appearance, and adopts the technology of RF cable feeding without external power lines, so it is suitable for construction applications. It's quite convenient.