US Patent No. 11,116,117

SYSTEM AND METHOD FOR ELECROMAGNETIC INTERFERENCE MITIGATION FOR AN ANTENNA ELEMENT AND SPEAKER CO-LOCATED WITHIN A CAVITY FORMED BEHIND A SPEAKER GRILL


Patent No. 11,116,117
Issue Date September 07, 2021
Title System And Method For Elecromagnetic Interference Mitigation For An Antenna Element And Speaker Co-located Within A Cavity Formed Behind A Speaker Grill
Inventorship Suresh K. Ramasamy, Cedar Park, TX (US)
Changsoo Kim, Cedar Park, TX (US)
Timothy C. Shaw, Austin, TX (US)
Geroncio O. Tan, Austin, TX (US)
Assignee Dell Products, LP, Round Rock, TX (US)

Claim of US Patent No. 11,116,117


1. An information handling system to wirelessly transmit and receive data comprising:a base chassis including a metal C-cover and metal D-cover to house a processor, a memory, and a wireless adapter, the metal C-cover to house a speaker grill, the speaker grill covering a speaker to emit audio waves;
the speaker grill formed within the C-cover to emit a target radio frequency (RF) including a slot formed around a portion of the speaker grill forming a peninsula on the speaker grill that is physically separated from the C-cover;
an antenna element placed behind the speaker grill and operatively coupled to the wireless adapter;
an electromagnetic interference (EMI) shield forming a cavity enclosing the speaker and the antenna element, comprising:a plurality of metallic shielding walls extending from the C-cover to a D-cover of the information handling system; and
a conductive rubber gasket placed between the plurality of conductive walls and the D-cover to shield the cavity from EMI sources.