Broadband microwave parabolic antenna feed source system

The utility model discloses a broadband microwave parabolic antenna feed source system which comprises a broadband OMT, a broadband feed source is fixedly arranged at the top of the broadband OMT, a first duplexer is fixedly arranged at the bottom of the broadband OMT, and a second duplexer is fixedly arranged on the side face of the broadband OMT. A broadband OMT vertical port of a broadband OMT is in butt joint with a first duplexer, a broadband OMT horizontal port of the broadband OMT is in butt joint with a second duplexer, a four-branch port is formed, the four-branch port is connected with four external ODU outdoor unit microwave devices respectively, and a microwave communication system with four communication channels is formed. The ultra-wideband of the dual-polarized antenna is further subjected to frequency division, so that the purpose that a pair of antennas of one link simultaneously perform four groups of receiving and transmitting is achieved, the technical requirements of high-power and high-