Antenna array system

1. An antenna array system comprising:

a plurality of antenna array units evenly arranged in different orientations, wherein each antenna array unit comprises a main antenna element and a plurality of antenna elements with different azimuth angles, and the different azimuth angles of the antenna elements in the each antenna array unit form a vector, wherein the vectors corresponding to the antenna array units constitute a vector matrix that matches a predetermined rule;

a processor electrically connected to the antenna array units;

a plurality of wireless transceivers units electrically connected to the processor, wherein the main antenna elements are directly connected to the wireless transceiver units; and

a plurality of switch units, wherein the antenna elements are connected to the wireless transceiver units through the switch units.

2. The antenna array system of claim 1 , wherein each azimuthal difference between any adjacent two of the antenna elements in the each antenna array unit is identical in value, and each azimuthal difference between two corresponding antenna elements of any adjacent two of the antenna array units is identical in value.

3. The antenna array system of claim 2 , wherein the number of the antenna array units is four, the vectors is four sets of the vectors, and the vector matrix is a 2×2 vector matrix, and the predetermined rule comprises that each difference between two vector heads of any two adjacent vectors of the four sets of the vectors is identical in value.

4. The antenna array system of claim 2 , wherein the number of the antenna array units is nine or sixteen, the vectors is nine sets of the vectors when the number of the antenna array units is nine, the vectors is sixteen sets of the vectors when the number of the antenna array units is sixteen, the vector matrix of the nine sets of the vectors is a 3×3 vector matrix, the vector matrix of the sixteen sets of the vectors is a 4×4 vector matrix, the predetermined rule comprises that the sum of each row, column and diagonal of RMS (Root mean square) values of the vectors in the vector matrix is substantially equal.

5. The antenna array system of claim 4 , wherein vector heads are selected from the vectors in the vector matrix to constitute a head matrix, and the predetermined rule comprises that the sum of each row, column and diagonal of values of the head matrix is substantially equal.

6. The antenna array system of claim 4 , wherein vector heads are selected from the vectors in the vector matrix as selected values to constitute a head matrix, the selected values of the head matrix are simplified to be index integers of an index matrix, order of the index integers depends on the magnitude of the selected values, and the predetermined rule comprises that the sum of each row, column and diagonal of values of index integers of the index matrix is substantially equal.

7. The antenna array system of claim 4 , wherein the 3×3 vector matrix matches the predetermined rule, any row and any column of the 3×3 vector matrix have a plurality of azimuth clustered sets respectively, each azimuth clustered set corresponds to a set of antenna elements, and the set of antenna elements are electrically connected to each other, so as to facilitate operation by the processor.

8. The antenna array system of claim 2 , further comprising:

a plurality of virtual loads;

a plurality of first conducting wires, wherein two ends of each of the first conducting wires are electrically connected to a corresponding one of antenna array units and a corresponding one of virtual loads; and

a plurality of second conducting wires are interlaced with the first conducting wires, wherein two ends of each of the second conducting wires are electrically connected to a corresponding one of the wireless transceiver units and a ground.

9. The antenna array system of claim 8 , further comprising:

a plurality of electronic switches, each of the electronic switches electrically connected to the corresponding one of the first conducting wires and the corresponding one of the second conducting wires.

10. The antenna array system of claim 9 , wherein the each of the electronic switches is a diode, an anode of the diode is electrically connected to the corresponding one of the first conducting wires, and a cathode of the diode is electrically connected to the corresponding one of the second conducting wires.