Built-in multi-antenna module

1. A built-in multi-antenna module, comprising:

a grounding unit;

a plurality of first radiating units disposed on the grounding unit, wherein each first radiating unit has a first radiating body parallel to the surface of the grounding unit, a first feeding pin being extended downwards from one side of the first radiating body and being suspended, and a first shorting pin being extended downwards from one side of the first radiating body and being connected to the grounding unit; and

a plurality of second radiating units disposed on the grounding unit, wherein each second radiating unit has a second radiating body parallel to the surface of the grounding unit, a second feeding pin being extended downwards from one side of the second radiating body and being suspended, and a second shorting pin being extended downwards from one side of the second radiating body and being connected to the grounding unit;

wherein the first radiating units and the second radiating units are alternately and symmetrically arranged on the grounding unit, many included angles respectively formed between each first radiating unit and each second radiating unit are the same.

2. The built-in multi-antenna module according to claim 1 , wherein the grounding unit is a regular polygonal conductive plate or a circular conductive plate.

3. The built-in multi-antenna module according to claim 1 , further comprising a plurality of signal wires respectively connected to the first feeding pins and the second feeding pins, wherein the grounding unit has a through hole formed on a central portion thereof, and the signal wires pass through the through hole.

4. The built-in multi-antenna module according to claim 1 , wherein the number of the first radiating units is three, the number of the second radiating units is three, and each included angle between each first radiating unit and each second radiating unit is 60 degrees.

5. The built-in multi-antenna module according to claim 1 , wherein the first feeding pin of each first radiating unit is adjacent to the second shorting pin of one adjacent second radiating unit, and the first shorting pin of each first radiating unit is adjacent to the second feeding pin of another adjacent second radiating unit, wherein the second feeding pin of each second radiating unit is adjacent to the first shorting pin of one adjacent first radiating unit, and the second shorting pin of each second radiating unit is adjacent to the first feeding pin of another adjacent first radiating unit.

6. The built-in multi-antenna module according to claim 1 , wherein the first feeding pin and the first shorting pin of each first radiating unit are separated from each other by a predetermined distance, and the second feeding pin and the second shorting pin of each second radiating unit are separated from each other by a predetermined distance.

7. The built-in multi-antenna module according to claim 1 , wherein the first feeding pin and the first shorting pin of each first radiating unit are disposed on the same plane or different planes, and the second feeding pin and the second shorting pin of each second radiating unit are disposed on the same plane or different planes.

8. The built-in multi-antenna module according to claim 1 , wherein shapes of the first radiating units are the same, and shapes of the second radiating units are the same, wherein antenna operating frequencies of the first radiating units are the same, and antenna operating frequencies of the second radiating units are the same.

9. The built-in multi-antenna module according to claim 1 , wherein the first feeding pins are respectively vertically or slantwise extended downwards from the side of the first radiating bodies, and the first shorting pins are respectively vertically or slantwise extended downwards from the side of the first radiating bodies, wherein the second feeding pins are respectively vertically or slantwise extended downwards from the side of the second radiating bodies, and the second shorting pins are respectively vertically or slantwise extended downwards from the side of the second radiating bodies.

10. The built-in multi-antenna module according to claim 1 , wherein each first feeding pin has a first feeding point on a bottom portion thereof, each second feeding pin has a second feeding point on a bottom portion thereof, and the first feeding points and the second feeding points face a geometric center of the grounding unit.

11. The built-in multi-antenna module according to claim 1 , wherein each first radiating unit has a first extending portion extended downwards from another side of the first radiating body, and each second radiating unit has a second extending portion extended downwards from another side of the second radiating body.

12. The built-in multi-antenna module according to claim 11 , wherein each first extending portion is bent continuously and downwards from each first radiating body, and each second extending portion is bent continuously and downwards from each second radiating body.

13. A built-in multi-antenna module installed in an antenna system housing, comprising:

a grounding unit;

a plurality of first radiating units disposed on the grounding unit, wherein each first radiating unit has a first radiating body parallel to the surface of the grounding unit, a first feeding pin being extended downwards from one side of the first radiating body and being suspended, and a first shorting pin being extended downwards from one side of the first radiating body and being connected to the grounding unit; and

a plurality of second radiating units disposed on the grounding unit, wherein each second radiating unit has a second radiating body parallel to the surface of the grounding unit, a second feeding pin being extended downwards from one side of the second radiating body and being suspended, and a second shorting pin being extended downwards from one side of the second radiating body and being connected to the grounding unit;

wherein the first radiating units and the second radiating units are alternately and symmetrically arranged on the grounding unit, many included angles respectively formed between each first radiating unit and each second radiating unit are the same, and the grounding unit, the first radiating units and the second radiating units are enclosed by the antenna system housing.

14. The built-in multi-antenna module according to claim 13 , wherein the first feeding pin of each first radiating unit is adjacent to the second shorting pin of one adjacent second radiating unit, and the first shorting pin of each first radiating unit is adjacent to the second feeding pin of another adjacent second radiating unit, wherein the second feeding pin of each second radiating unit is adjacent to the first shorting pin of one adjacent first radiating unit, and the second shorting pin of each second radiating unit is adjacent to the first feeding pin of another adjacent first radiating unit.

15. The built-in multi-antenna module according to claim 13 , wherein the first feeding pin and the first shorting pin of each first radiating unit are separated from each other by a predetermined distance, and the second feeding pin and the second shorting pin of each second radiating unit are separated from each other by a predetermined distance.

16. The built-in multi-antenna module according to claim 13 , wherein the first feeding pins are respectively vertically or slantwise extended downwards from the side of the first radiating bodies, and the first shorting pins are respectively vertically or slantwise extended downwards from the side of the first radiating bodies, wherein the second feeding pins are respectively vertically or slantwise extended downwards from the side of the second radiating bodies, and the second shorting pins are respectively vertically or slantwise extended downwards from the side of the second radiating bodies.

17. The built-in multi-antenna module according to claim 13 , wherein each first radiating unit has a first extending portion extended downwards from another side of the first radiating body, each second radiating unit has a second extending portion extended downwards from another side of the second radiating body, each first extending portion is bent continuously and downwards from each first radiating body, and each second extending portion is bent continuously and downwards from each second radiating body.

18. A built-in multi-antenna module installed in an antenna system housing, comprising:

a grounding unit; and

a plurality of radiating sets with different antenna operating frequencies disposed on the grounding unit, wherein each radiating set has a plurality of radiating units with the same operating frequency, and each radiating unit has a radiating body parallel to the surface of the grounding unit, a feeding pin being extended downwards from one side of the radiating body and being suspended and a shorting pin being extended downwards from one side of the radiating body and being connected to the grounding unit;

wherein many included angles respectively formed between every two adjacent radiating units of the radiating sets are the same, many included angles respectively formed between every two radiating units of each radiating set are the same, the radiating units of the radiating sets are alternately and symmetrically arranged on the grounding unit, and the grounding unit and the radiating units of the radiating sets are enclosed by the antenna system housing.

19. The built-in multi-antenna module according to claim 18 , wherein the different antenna operating frequencies are in the 2.4 GHz and 5 GHz bands.

20. The built-in multi-antenna module according to claim 18 , wherein the number of the radiating units of each radiating set is three, and each included angle between every two adjacent radiating units of the radiating sets is 60 degrees.