Antenna and base station

An antenna, comprising:

• a plurality of radiating units arranged by column and comprising a plurality of radiating bodies and a reflecting plate which is configured to reflect a portion of electromagnetic waves radiated by the plurality of radiating bodies, such that the electromagnetic waves are radiated in a radiation orientation;
• and
• a dielectric component arranged in the radiation orientation of at least one radiating unit of the plurality of radiating units and comprising an undulating portion spaced apart from the at least one radiating unit by a distance,
• wherein a first undulating structure includes at least two adjacent first undulating units is provided on a lower surface of the undulating portion at least facing the at least one radiating unit in a transverse direction, the transverse direction being vertical to the column and parallel to the reflecting plate,
• wherein a second undulating structure includes at least two adjacent second undulating units is provided on an upper surface of the undulating portion away from the at least one radiating unit in the transverse direction, and
• wherein the second undulating structure and the first undulating structure have a same shape and dimension, such that the dielectric component has a uniform thickness.