Feed assembly and antenna

Abstract

This application provides a feed assembly and an antenna. The feed assembly includes a waveguide, a dielectric, and a secondary reflective surface. The waveguide includes a first end and a second end. An inner wall of the waveguide includes one or more ring structures disposed close to the first end. The one or more ring structures are sequentially arranged from the first end to the second end, and an axis of each ring structure extends along an axial direction of the waveguide. One end of the dielectric is inserted into the waveguide from the first end. The secondary reflective surface is fastened to one end of the dielectric away from the waveguide. The feed assembly provided in this application can have good impedance matching performance in a wide frequency band, and therefore antenna bandwidth can be increased.

Dependencies are inferred from the claim text.