Transparent antenna and communication system

A transparent antenna, comprising:

• a first backplane comprising a first dielectric layer, a first electrode layer, a plurality of first transmission lines and a plurality of second transmission lines, wherein the first dielectric layer comprises a first surface and a second surface which are opposite to each other, and the first electrode layer is located on the first surface of the first dielectric layer;
• the plurality of first transmission lines and the plurality of second transmission lines are located on the second surface of the first dielectric layer;
• at least one radiating structure, which is located on the second surface of the first dielectric layer, and each radiating structure comprises:
• a first antenna dielectric plate comprising a second dielectric layer, a first radiating element and a first balun feed structure, wherein the second dielectric layer comprises a third surface and a fourth surface which are opposite to each other;
• the third surface of the second dielectric layer intersects the first surface of the first dielectric layer;
• the second dielectric layer is fixed on the second surface of the first dielectric layer;
• the first radiating element is located on the third surface of the second dielectric layer, and the first balun feed structure is located on the fourth surface of the second dielectric layer;
• the first balun feed structure is electrically connected with one of the first transmission lines, and the first radiating element is electrically connected with the first electrode layer;
• a second antenna dielectric plate comprising a third dielectric layer, a second radiating element and a second balun feed structure, wherein the third dielectric layer comprises a fifth surface and a sixth surface which are opposite to each other, the fifth surface of the third dielectric layer intersects the first surface of the first dielectric layer, the third dielectric layer intersects the second dielectric layer and is fixed on the second surface of the first dielectric layer;
• the second radiating element is located on the fifth surface of the third dielectric layer, and the second balun feed structure is located on the sixth surface of the third dielectric layer;
• the second balun feed structure is electrically connected with one of the second transmission lines, and the second radiating element is electrically connected with the first electrode layer.