Dual band antenna plate and method for manufacturing
A wireless device with an antenna plate includes one or more components; and at least one antenna integrally formed with the antenna plate. The at least one antenna has a low frequency section and a high frequency section, wherein the high frequency section has a slot, the dimensions of the slot being formed in part by a parasitic arm formed within the high frequency section. A method for manufacturing a wireless device having an antenna plate includes stamping a metallic sheet to form the antenna plate having at least one antenna element; and folding the at least one dual-band antenna element about a portion of a perimeter of the stamped sheet forming an upper surface, a side wall and a lower surface of the at least one antenna element.
1. A wireless device having an antenna plate, the wireless device comprising:
one or more components including a heatsink, a fan module, and a printed circuit board; and
at least one antenna, integrally formed with the antenna plate, having a low frequency section and a high frequency section,
wherein the high frequency section has a slot, and
wherein the slot is formed with a closed end and an open end, a portion of the slot forms an inductance loop for the low frequency section, and the slot serves as an inductance element to the low frequency section, while also serving as a radiating element to the high frequency section.
2. The wireless device of claim 1 , wherein dimensions of the slot are formed in part by a parasitic arm formed within the high frequency section.
3. The wireless device of claim 1 , wherein the at least one antenna and the antenna plate are formed from a single metallic sheet.
4. The wireless device of claim 1 , wherein the high frequency section has one or more resonant frequencies in the 5-6 GHz range, and the low frequency section has a resonant frequency in the 2-3 GHz range.
5. The wireless device of claim 1 , wherein a voltage across the slot provides radiation of the high frequency section when the wireless device is in operation.
6. The wireless device of claim 1 , wherein an inductance loop is formed around at least a portion of the slot adjacent to the low frequency section.
7. The wireless device of claim 1 , wherein an antenna cable is routed through a recessed trench formed within a side wall of the at least one antenna.
8. The wireless device of claim 1 , wherein an antenna cable is electrically attached adjacent to the slot at an uppermost surface of the high frequency section.
9. The wireless device of claim 1 , wherein a shape of the antenna plate is substantially one of a ring and a polygon.
10. The wireless device of claim 9 , wherein the antenna plate is positioned around the one or more components and disposed within a housing of the wireless device.
11. A method comprising:
providing a wireless device comprising
an antenna plate;
one or more components including a heatsink, a fan module, and a printed circuit board; and
at least one antenna, integrally formed with the antenna plate, having a low frequency section and a high frequency section,
wherein the high frequency section has a slot, and
wherein the slot is formed with a closed end and an open end, a portion of the slot forms an inductance loop for the low frequency section, and the slot serves as an inductance element to the low frequency section, while also serving as a radiating element to the high frequency section.
12. The method of claim 11 , wherein dimensions of the slot are formed in part by a parasitic arm formed within the high frequency section.
13. The method of claim 11 , wherein the at least one antenna and the antenna plate are formed from a single metallic sheet.
14. The method of claim 11 , wherein the high frequency section has one or more resonant frequencies in the 5-6 GHz range, and the low frequency section has a resonant frequency in the 2-3 GHz range.
15. The method of claim 11 , wherein a voltage across the slot provides radiation of the high frequency section when the wireless device is in operation.
16. The method of claim 11 , wherein an inductance loop is formed around at least a portion of the slot adjacent to the low frequency section.
17. The method of claim 11 , wherein an antenna cable is routed through a recessed trench formed within a side wall of the at least one antenna.
18. The method of claim 11 , wherein an antenna cable is electrically attached adjacent to the slot at an uppermost surface of the high frequency section.
19. The method of claim 11 , wherein a shape of the antenna plate is substantially one of a ring and a polygon.
20. The method of claim 19 , wherein the antenna plate is positioned around the one or more components and disposed within a housing of the wireless device.