System and method for antenna pattern positioning of integrated antenna vent
An information handling system to wirelessly transmit and receive data at an antenna may include a base housing metal chassis containing components of the information handling system, the base housing metal chassis including a C-cover and D-cover housing the components; and an antenna cavity formed within the C-Cover and D-cover including: a first aperture formed through a portion of the D-cover; a second aperture formed through a portion of the C-cover; and a grounding wall formed within the antenna cavity to operatively couple currents associated with the antenna such that the currents travel from the first aperture to the send aperture causing emitted electromagnetic radiation to be emitted towards the second aperture.
1. An information handling system to wirelessly transmit and receive data at an antenna comprising:
a processor, a memory and a wireless interface circuit;
a base housing metal chassis containing components of the information handling system, the base housing metal chassis including a C-cover and D-cover housing the components;
the antenna located within an antenna cavity and operatively coupled to the wireless interface circuit to transmit and receive wireless signals via electromagnetic (EM) frequency radiation;
the antenna cavity formed within the C-Cover and D-cover along a side of the base housing metal chassis including:
a first aperture formed through a portion of the D-cover;
a second aperture formed through a portion of the C-cover over the first aperture such that transmission from the first aperture reaches the second aperture through the antenna cavity; and
a grounding wall formed within the antenna cavity to operatively couple currents associated with the antenna such that the currents travel from the first aperture to the second aperture causing emitted electromagnetic radiation to be emitted towards the second aperture.
2. The information handling system of claim 1 , wherein the second aperture is a slot formed along an edge of the C-cover and is between 1 mm and 3 mm wide.
3. The information handling system of claim 1 , wherein the second aperture is concealed by filling the aperture cavity with a glass substrate.
4. The information handling system of claim 1 , wherein the first aperture is sized to operate at a frequency of 2.4 GHz.
5. The information handling system of claim 1 , wherein the second aperture directs the EM frequency radiation through the C-cover and above horizon in an open configuration of the information handling system.
6. The information handling system of claim 1 , wherein the first aperture is formed through and directed at an angle from a bottom surface of the D-cover toward the second aperture formed in the C-cover.
7. The information handling system of claim 1 , wherein the second aperture is grounded to the D-chassis forming a low impedance path between the first aperture and second aperture causing the emitted electromagnetic radiation to be emitted towards the second aperture.
8. The information handling system of claim 1 , wherein the second aperture formed through the C-cover is in the form of a slot running parallel to a side surface of the information handling system and wherein the slot is formed between 3 and 5 mm away from the side surface of the information handling system.
9. A cavity backed antenna system for an information handling system comprising:
a C-cover made of metal to house a keyboard;
a D-cover made of metal as a base chassis including:
an antenna cavity;
an antenna element to transmit an electromagnetic (EM) signal via a wireless interface; and
a first aperture formed through a portion of the D-cover and operatively coupled to the antenna element to radiate the EM signal; and
a second aperture formed through a portion of the C-cover and operatively coupling the antenna cavity through the C-cover; and
a grounding wall formed within the antenna cavity to create a low impedance path from the first aperture to the second aperture.
10. The assembly of claim 9 , wherein the second aperture is concealed by filling the aperture cavity with a radio frequency transparent material.
11. The assembly of claim 9 , wherein the first aperture is sized to operate at a frequency of 2.4 GHz.
12. The assembly of claim 9 , wherein the second aperture directs the EM frequency radiation through the C-cover and above horizon in an open configuration of the information handling system.
13. The assembly of claim 9 , wherein the first aperture is formed through and directed at an angle to transmit from a bottom surface of the D-cover into the antenna cavity and away from the D-cover when coupled to the antenna element.
14. The assembly of claim 9 , wherein the grounding wall is electrically coupled to the D-cover and wherein the second aperture is grounded to the D-chassis via the grounding wall thereby forming a low impedance path between the first aperture and second aperture and causing the emitted electromagnetic radiation to be emitted through the second aperture in the C-cover.
15. The assembly of claim 9 , wherein the second aperture formed through the C-cover is in the form of a slot running parallel to a side surface of the information handling system and wherein the slot is formed between 3-5 mm away from the side surface of the information handling system.
16. An information handling system to transmit a communication signal comprising:
a processor and a memory;
a wireless interface adapter including an antenna adaption controller to selectively apply a current at a voltage to an antenna within an antenna cavity;
a base housing metal chassis containing components of the information handling system, the base housing metal chassis including a C-cover and D-cover housing the components; and
the antenna cavity formed within a base assembly between the C-Cover and D-cover including:
a first aperture formed through a portion of the D-cover;
a second aperture formed through a portion of the C-cover and along an edge of the C-cover, and wherein the antenna is located along the first aperture and along an edge of the antenna cavity to provide a larger resonant cavity volume in the antenna cavity; and
a grounding wall formed within the antenna cavity to operatively couple currents associated with the antenna such that the currents travel from the first aperture to the second aperture causing emitted electromagnetic radiation to be emitted through the second aperture in the C-cover.
17. The information handling system of claim 16 , wherein the second aperture is concealed by filling the aperture cavity with a radio frequency transparent material.
18. The information handling system of claim 16 , wherein second aperture directs the electromagnetic radiation out of the C-cover and above horizon as the information handling system is placed in a predetermined configuration.
19. The information handling system of claim 16 , wherein the first aperture is formed through and directs electromagnetic radiation at an angle away from a side of the D-cover.
20. The information handling system of claim 16 , wherein the second aperture formed through the C-cover is in the form of a slot running parallel to a side surface of the information handling system and wherein the slot is formed 4 mm away from the side surface of the information handling system.