Multiple polarized antenna

A multiple polarized antenna, comprising:

• a load board comprising a conductive layer;
• a first radiation plate located above the load board and having a first resonance gap with the conductive layer;
• M pieces of feeding part located under the first radiation plate and insulated from the conductive layer, at least a part of each of the feeding parts being covered by and located under the first radiation plate, the feeding part configured to have signal transmission with the first radiation plate, wherein M is a positive integer larger than 2;
• and
• N pieces of grounded part disposed on the load board and electrically connected to the conductive layer, wherein N is a positive integer larger than 1,
• wherein each of the feeding parts extends in one corresponding feeding direction and transmits and receives signals in said corresponding feeding direction;
• wherein an amount of the feeding part is 4 and an amount of the grounded part is 4, the corresponding feeding directions of two of the four feeding parts are respectively a positive direction and a reverse direction along a first preset axis, and the corresponding feeding directions of the others of the four feeding parts are respectively a positive direction and a reverse direction along a second preset axis;
• wherein the four feeding parts include a left, a right, an upper and a lower feeding parts, the left and right feeding parts extend in the positive and the reverse directions of the first preset axis, and the upper and lower feeding parts extend in the positive and reverse directions of the second preset axis;
• the grounded parts include a first, a second, a third, and a fourth grounded parts, the first grounded part is located in between the positive direction of the first preset axis and the positive direction of the second preset axis;
• the second grounded part is located in between the positive direction of the first preset axis and the reverse direction of the second preset axis;
• the third grounded part is located in between the reverse direction of the first preset axis and the reverse direction of the second preset axis;
• and the fourth grounded part is located in between the reverse direction of the first preset axis and the positive direction of the second preset axis;
• and
• wherein each of the feeding parts includes a first conductor section, a second conductor section and a third conductor section, the second conductor section is located between the first conductor section and the third conductor section, and the first conductor section, the second conductor section, and the third conductor section extend along different planes respectively, the first conductor section is inside the edge of the first radiation plate and there is a coupling gap between the first conductor section and the first radiation plate, the load board further comprises a dielectric layer connected with the conductive layer, the third conductor section is outside the edge of the first radiation plate and touches one surface of the dielectric layer.