Antenna structure and intelligent household appliance using the same

2:

• The antenna structure of claim 1, wherein the first patch is grounded.

3:

• The antenna structure of claim 1, further comprising a connecting device, wherein the connecting device comprises a first connecting end and a second connecting end, the first connecting end is grounded, the second connecting end is connected to the second patch.

4:

• The antenna structure of claim 3, wherein the first connecting end passes through the first patch and the substrate and is electrically connected to the second patch.

5:

• The antenna structure of claim 3, wherein the second connecting end is connected to the center line of the second patch.

6:

• The antenna structure of claim 1, wherein the second patch is formed by placing the second shorting wall into an equilateral triangle metal patch.

7:

• The antenna structure of claim 6, wherein the second connecting end is connected to a center of the equilateral triangle.

8:

• The antenna structure of claim 1, wherein a length of each of the first section and the second section is approximately 36 mm.

9:

• The antenna structure of claim 1, wherein the antenna structure excites a first resonant mode and a second resonant mode, the first resonant mode has a conical radiation pattern similar to that of a dipole antenna, and the second resonant mode has a broadside radiation pattern.

10:

• The antenna structure of claim 9, wherein a width of the second shorting wall is adjustable, wherein as the width of the second shorting wall is increased, the antenna structure excites a third resonant mode, a resonant frequency of the third resonant mode approximately equals to a resonant frequency of the first resonant mode.

12:

• The intelligent household appliance of claim 11, wherein the first patch is grounded.

13:

• The intelligent household appliance of claim 11, wherein the antenna structure comprises a connecting device, the connecting device comprises a first connecting end and a second connecting end, the first connecting end is grounded, the second connecting end is connected to the second patch.

14:

• The intelligent household appliance of claim 13, wherein the first connecting end passes through the first patch and the substrate and is electrically connected to the second patch.

15:

• The intelligent household appliance of claim 13, wherein the second connecting end is connected to the center line of the second patch.

16:

• The intelligent household appliance of claim 11, wherein the second patch is formed by placing the second shorting wall into an equilateral triangle metal patch.

17:

• The intelligent household appliance of claim 16, wherein the second connecting end is connected to a center of the equilateral triangle.

18:

• The intelligent household appliance of claim 11, wherein a length of each of the first section and the second section is approximately 36 mm.

19:

• The intelligent household appliance of claim 11, wherein the antenna structure excites a first resonant mode and a second resonant mode, the first resonant mode has a conical radiation pattern similar to that of a dipole antenna, and the second resonant mode has a broadside radiation pattern.

20:

• The intelligent household appliance of claim 19, wherein a width of the second shorting wall is adjustable, wherein as the width of the second shorting wall is increased, the antenna structure excites a third resonant mode, a resonant frequency of the third resonant mode approximately equals to a resonant frequency of the first resonant mode.