Antenna, manufacturing method thereof and communication system

An antenna, comprising:

• a dielectric layer;
• a first electrode on the dielectric layer and with at least one first opening therein;
• at least one radiation structure on a side of the dielectric layer away from the first electrode, wherein an orthographic projection of each of the at least one radiation structure on the dielectric layer is within an orthographic projection of one of the at least one first opening on the dielectric layer;
• and
• at least one first feeding line and at least one second feeding line, which are on the side of the dielectric layer away from the first electrode, wherein each of the at least one radiation structure is electrically connected to one of the at least one first feeding line and one of the at least one second feeding line,
• wherein taking a straight line which passes through a center of the first opening and is parallel to a plane where the first electrode is located as a symmetry axis, the first feeding line and the second feeding line, which are connected to a same radiation structure, are symmetrical to each other.