System and method for a shared millimeter wave antenna system co-located at a speaker grill
An information handling system to wirelessly transmit and receive data may include a base chassis including a processor, a memory, and a wireless adapater; a metal C-cover of the base chassis to house a speaker grill, the speaker grill covering a speaker to emit audio waves; the speaker grill formed within the C-cover, the speaker grill including a slot formed around a portion of a perimeter of the speaker grill that physically separates the portion of the speaker grill as a peninsula in the C-cover; a millimeter wave antenna element coupled to a back side of the speaker grill; and a sub-6 GHz antenna element to transmit via the slot formed around the perimeter of the speaker grill; wherein the speaker grill has a mesh pattern of grill openings sized to be transparent to millimeter wave frequencies emitted by the millimeter wave antenna element.
1. An information handling system to wirelessly transmit and receive data comprising:
a base chassis including a processor, a memory, and a wireless adapter;
a metal C-cover of the base chassis to house a speaker grill, the speaker grill covering a speaker to emit audio waves;
the speaker grill formed within the C-cover, the speaker grill comprising:
a slot formed around a portion of a perimeter of the speaker grill that physically separates the portion of the speaker grill as a peninsula in the C-cover;
a millimeter wave antenna element coupled to a back side of the speaker grill; and
a sub-6 GHz antenna element to transmit via the slot formed around the portion of the perimeter of the speaker grill;
wherein the speaker grill has a mesh pattern of grill openings sized to be transparent to millimeter wave frequencies emitted by the millimeter wave antenna element.
2. The information handling system of claim 1 , wherein the mesh pattern of grill openings for the speaker grill comprises a plurality of speaker grill openings having a pitch of holes that are between 0.5 mm and 1.5 mm by 0.5 mm and 1.5 mm.
3. The information handling system of claim 1 , wherein the mesh pattern of grill openings for the speaker grill comprises a plurality of speaker grill openings having a pitch of holes that are 1 mm by 1 mm.
4. The information handling system of claim 1 , wherein the mesh pattern of grill openings for the speaker grill comprises a plurality of holes defined in the speaker grill wherein the holes have a diameter between 0.2 mm and 0.8 mm and are spaced 1 mm apart.
5. The information handling system of claim 1 , wherein the mesh pattern of grill openings for the speaker grill comprises a plurality of holes defined in the speaker grill wherein the holes have a diameter of 0.5 mm and are spaced 1 mm apart.
6. The information handling system of claim 1 , comprising a printed circuit board operatively coupled to a bottom surface of the C-cover and eclectically coupled to the millimeter wave antenna element that is a millimeter wave patch array antenna bonded to the speaker grill.
7. The information handling system of claim 1 , wherein a cavity is formed below the speaker grill to resonate a 5G frequency range 1 (FR1) frequency emitted by the sub-6 GHz antenna element.
8. The information handling system of claim 1 , wherein the millimeter wave antenna element comprises an array of patch antennas mounted on a printed circuit board and communicatively coupled to a printed circuit board and operatively coupled to a bottom surface of the C-cover.
9. A C-cover and D-cover assembly for an information handling system comprising:
a speaker grill formed in the C-cover, the speaker grill covering a speaker to emit audio waves, the speaker grill comprising:
a millimeter wave antenna element coupled to a back side of the speaker grill; and
a plurality of speaker grill openings having a mesh pattern that is transparent to millimeter wave frequencies.
10. The assembly of claim 9 further comprising:
a slot formed around a portion of a perimeter of the speaker grill that physically separates the portion of the speaker grill within the C-cover; and
a sub-6 GHz antenna element co-molded around a perimeter of the speaker grill to transmit via the slot.
11. The assembly of claim 10 , wherein a cavity is formed below the speaker grill enclosing the millimeter wave antenna element to resonate a 5G FR1 frequency emitted by the sub-6 GHz antenna element via the slot.
12. The assembly of claim 9 , wherein the mesh pattern of the speaker grill having a speaker grill opening pitch of between 0.5 mm and 1.5 mm by 0.5 mm and 1.5 mm.
13. The assembly of claim 9 , wherein the mesh pattern of speaker grill comprises a plurality of holes defined in the speaker grill wherein the holes have a diameter between 0.2 mm and 0.8 mm.
14. The assembly of claim 9 , wherein the mesh pattern of speaker grill comprises a plurality of holes defined in the speaker grill wherein the holes have a diameter of 0.5 mm.
15. The assembly of claim 9 , comprising a printed circuit board operatively coupled to a bottom surface of the C-cover and eclectically coupled to the millimeter wave antenna element.
16. The assembly of claim 9 , wherein the millimeter wave antenna element comprises an array of patch antennas mounted on a printed circuit board and communicatively coupled to a printed circuit board and operatively coupled to a bottom surface of the C-cover.
17. The information handling system of claim 16 , wherein the mesh pattern of the plurality of speaker grill openings of the speaker grill comprises a pitch of holes that are 1 mm by 1 mm.
18. The information handling system of claim 16 , wherein the mesh pattern of the plurality of speaker grill openings of speaker grill comprises a plurality of holes defined in the speaker grill wherein the holes have a diameter of 0.5 mm.
19. The information handling system of claim 16 , wherein the millimeter wave antenna element comprises an array of patch antennas mounted on a printed circuit board and communicatively coupled to a printed circuit board via a flex cable and the millimeter wave antenna element is operatively coupled to a bottom surface of the C-cover.
20. An information handling system to transmit a communication signal comprising:
a processor, memory, and wireless adapter in a base chassis;
a wireless interface adapter including a tunable front end to, upon execution of computer code at a processor, initiate communication with a network;
a metal C-cover of the base chassis to house a speaker grill, the speaker grill covering a speaker to emit audio waves;
the speaker grill formed within the C-cover, the speaker grill comprising:
a slot formed around a portion of a perimeter of the speaker grill that physically separates the portion of the speaker grill from the C-cover;
a plurality of speaker grill openings in the speaker grill with a mesh pattern that is transparent to millimeter wave frequencies;
a millimeter wave antenna element coupled to a back side of the speaker grill; and
a sub-6 GHz antenna element co-molded around a perimeter of the speaker grill.