Dual band antenna plate and method for manufacturing
A method for manufacturing a dual-band antenna includes stamping a metallic sheet to form an antenna plate having at least one antenna element with a low frequency section and a high frequency section having a slot; and folding the at least one antenna element about a portion of a perimeter of the stamped metallic sheet forming an upper surface, a side wall and a lower surface of the at least one antenna element.
1. A method for manufacturing a dual-band antenna comprising:
stamping a metallic sheet to form an antenna plate having a plurality of antenna elements with a low frequency section and a high frequency section having a slot, the plurality of antenna elements being formed by the stamping process to punch the desired antenna shape from the metallic sheet; and
folding the at least one antenna element about a portion of a perimeter of the stamped metallic sheet forming an upper surface, a side wall and a lower surface of the at least one antenna element.
2. The method of claim 1 , wherein dimensions of the slot are formed in part by a parasitic arm formed within the high frequency section.
3. The method of claim 1 , wherein an inductance loop is formed around at least a portion of the slot adjacent to the low frequency section.
4. The method of claim 1 , wherein the upper frequency section has one or more resonant frequencies in the 5-6 GHz range and the lower frequency section has a resonant frequency in the 2-3 GHz range.
5. The method of claim 1 , wherein a voltage across the slot provides radiation from the high frequency section when the wireless device is in operation.
6. The method of claim 1 , further comprising the step of impressing a trench in a surface of the side wall of the at least one antenna element, such that the trench is perpendicular to a lower surface of the at least one antenna when folded.
7. The method of claim 6 , further comprising the step of routing an antenna cable through the trench.
8. The method of claim 7 , further comprising the step of electrically connecting the antenna cable to an upper surface of the high frequency section.
9. The method of claim 1 , wherein the lower surface of the antenna element is a continuous common ground for the antenna plate.
10. The method of claim 1 , wherein a shape of the antenna plate is substantially one of a ring and a polygon.
11. A dual band antenna formed by a process comprising steps of:
stamping a metallic sheet to form an antenna plate having a plurality of antenna elements with a low frequency section and a high frequency section having a slot, the plurality of antenna elements being formed by the stamping process to punch the desired antenna shape from the metallic sheet; and
folding the at least one antenna element about a portion of a perimeter of the stamped metallic sheet forming an upper surface, a side wall and a lower surface of the at least one antenna element.
12. The dual band antenna of claim 11 , wherein dimensions of the slot are formed in part by a parasitic arm formed within the high frequency section.
13. The dual band antenna of claim 11 , wherein an inductance loop is formed around at least a portion of the slot adjacent to the low frequency section.
14. The dual band antenna of claim 11 , wherein the upper frequency section has one or more resonant frequencies in the 5-6 GHz range and the lower frequency section has a resonant frequency in the 2-3 GHz range.
15. The dual band antenna of claim 11 , wherein a voltage across the slot provides radiation from the high frequency section when the wireless device is in operation.
16. The dual band antenna of claim 11 , further comprising the step of impressing a trench in a surface of the side wall of the at least one antenna element, such that the trench is perpendicular to a lower surface of the at least one antenna when folded.
17. The dual band antenna of claim 16 , further comprising the step of routing an antenna cable through the trench.
18. The dual band antenna of claim 17 , further comprising the step of electrically connecting the antenna cable to an upper surface of the high frequency section.
19. The dual band antenna of claim 11 , wherein the lower surface of the antenna element is a continuous common ground for the antenna plate.
20. The dual band antenna of claim 11 , wherein a shape of the antenna plate is substantially one of a ring and a polygon.