C/Ku dual-frequency shared circularly polarized coaxial feed source network

The invention discloses a C/Ku dual-frequency shared circularly polarized coaxial feed source network, and belongs to the technical field of satellite communication. The antenna comprises a coaxial feed source horn, a C-band coaxial rotary joint, a C-band coaxial waveguide circular polarizer, a circular polarizer driving motor, a coaxial transition waveguide, a C-band broadband coaxial orthogonal mode coupler, a Ku-band broadband orthogonal mode coupler, a C-band frequency duplexer, a Ku-band frequency duplexer, a Ku-band connection waveguide and a feed source network support. According to the invention, satellite signals in a C/Ku frequency band can be received and transmitted, the C transmitting frequency is 5.85 to 6.725 GH, the C receiving frequency is 3.7 to 4.2 GHz, the Ku transmitting frequency is 13.75 to 14.5 GHz, and the Ku receiving frequency is 10.95 to 12.75 GHz; and the antenna is compact in structure, small in size, excellent in performance and suitable for small-caliber antennas. 本发明公开了一种C/Ku双