Antenna array device and antenna unit thereof

1. An antenna array device, comprising:

a first housing and a second housing that are connected to each other so as to jointly define a distribution space; and

an antenna module located in the distribution space and including:

a first antenna unit including:

a support integrally formed as a single one-piece structure, wherein the support has a first substrate, a first stand, and a second stand, wherein the first stand and the second stand extend from two opposite sides of the first substrate, respectively, and the first stand faces toward the first housing, and wherein the first substrate and at least one of the first stand and the second stand jointly define a plurality of cavities; and

a first antenna structure including a plurality of first patches that are formed on the first substrate and that are arranged in the cavities; and

a second antenna unit connected to the second stand of the support.

2. The antenna array device according to claim 1 , wherein the first stand includes a plurality of first partitions surrounding the first patches, and wherein a quantity of the first patches surrounded by any one of the first partitions is less than or equal to four.

3. The antenna array device according to claim 1 , wherein the first stand includes a plurality of first partitions surrounding the first patches, and wherein a quantity of the first patches surrounded by any one of the first partitions is one.

4. The antenna array device according to claim 3 , wherein each of the first partitions has a shape of a regular polygon having N number of sides, and N is a positive integer greater than three.

5. The antenna array device according to claim 1 , wherein the first stand includes a plurality of first partitions surrounding the first patches, and the second stand includes a plurality of second partitions, and wherein a projection region defined by orthogonally projecting the second partitions onto the first stand overlaps with the first partitions.

6. The antenna array device according to claim 5 , wherein any one of the first partitions has a first height relative to the first substrate, any one of the second partitions has a second height relative to the first substrate, and the second height is less than the first height.

7. The antenna array device according to claim 1 , wherein the first patches are arranged in a plurality of rows each parallel to a first direction and in a plurality of columns each parallel to a second direction that is perpendicular to the first direction.

8. The antenna array device according to claim 1 , wherein the first patches are plated on the first substrate.

9. The antenna array device according to claim 1 , wherein the antenna module includes a feeding antenna unit, and the second antenna unit is sandwiched between the second stand and the feeding antenna unit and includes a second substrate and a second antenna structure that is formed on the second substrate, wherein the feeding antenna unit includes a circuit board having at least one antenna arranged adjacent to the second antenna structure, and wherein the at least one antenna is configured to couple to the second antenna structure, and the second antenna structure is configured to couple to the first antenna structure.

10. The antenna array device according to claim 9 , wherein the feeding antenna unit further includes at least one feeding cable, and the circuit board further includes at least one radiating portion that is connected to the at least one feeding cable, and wherein the at least one radiating portion is configured to couple to the at least one antenna having a slot, and the at least one antenna is configured to couple to the second antenna structure.

11. The antenna array device according to claim 1 , wherein the second antenna unit includes a second substrate being in a flat shape and a plurality of second patches that are plated on the second substrate and that respectively correspond in position to the first patches.

12. The antenna array device according to claim 11 , wherein the second substrate is sandwiched between the second stand and the feeding antenna unit, wherein the cavities include a plurality of first cavities that are defined by the first substrate and the first stand and a plurality of second cavities that are defined by the first substrate and the second stand, and wherein the first patches are arranged in the first cavities, and the second patches are arranged in the second cavities.

13. An antenna unit of an antenna array device, comprising:

a support integrally formed as a single one-piece structure, wherein the support has a substrate, a first stand, and a second stand, wherein the first stand and the second stand extend from two opposite sides of the substrate, respectively, and wherein the substrate and at least one of the first stand and the second stand jointly define a plurality of cavities; and

an antenna structure including a plurality of patches that are formed on the substrate and that are arranged in the cavities.

14. The antenna unit according to claim 13 , wherein the patches are arranged in a plurality of rows each parallel to a first direction and in a plurality of columns each parallel to a second direction that is perpendicular to the first direction.

15. The antenna unit according to claim 14 , wherein the patches are plated on the substrate.

16. The antenna unit according to claim 13 , wherein the first stand includes a plurality of first partitions surrounding the patches, and wherein each of the first partitions has a shape of a regular polygon having N number of sides, and N is a positive integer greater than three.

17. The antenna unit according to claim 16 , wherein the second stand includes a plurality of second partitions, and wherein a projection region defined by orthogonally projecting the second partitions onto the first stand overlaps with the first partitions.