KU heavy -calibre horn feed

The utility model relates to a KU heavy -calibre horn feed, the solution be the feed signal weak and cover frequently with the little technical problem of receiving range, through the adoption KU heavy -calibre horn feed includes the wave guide and is located the waveguide port of wave guide front end, waveguide port is including the first bore waveguide ring, second bore waveguide ring and the third bore waveguide ring that cup joint, the internal diameter of first bore waveguide ring is 52mm 0.05mm, and the internal diameter of second bore waveguide ring is 42mm 0.05mm, and the internal diameter of third bore waveguide ring is 33.6 0.05mm, first bore waveguide annular shaft is 14.75mm deeply, the dark technical scheme who be 14.75mm of axle of second bore waveguide ring, better solutionthis problem, can be used to in the antenna application. 本实用新型涉及种KU大口径喇叭馈源，解决的是馈源信号弱及涵盖频点和接收范围小的技术问题，通过采用所述KU大口径喇叭馈源包括波导管以及位于波导管前端的波导口；波导口包括套接的第口径波导环、第二口径波导环及第三口径波导环；第口径波导环的内径为52mm±0.05mm，第二口径波导环的内径为42mm±0.05mm，第三口径波导环的内径为33.