System and method for an antenna system co-located at a speaker grill

A C-cover and D-cover assembly for an information handling system chassis comprising:

• a speaker grill made of metal in the C-cover of a base chassis portion of the information handling system chassis, the speaker grill covering a speaker;
• a slot formed through the C-cover and around a portion of the speaker grill and physically and operatively separating the portion of the speaker grill from the C-cover as an antenna;
• a cavity formed on a back side of the separated portion of the speaker grill, the cavity including walls formed around and along a perimeter of the separated portion of the speaker grill by metal of the D-cover base wall, D-cover sidewalls, and a shielding wall insolating a remainder of the base chassis;
• and
• a tuning integrated circuit operatively coupled to the speaker grill to excite the speaker grill and dynamically switch frequencies based on a target frequency to be emitted by the speaker grill.

An information handling system to transmit a communication signal comprising:

• a processor;
• a memory;
• an input/output (I/O) device;
• a wireless interface adapter including a tuning integrated circuit;
• a speaker grill formed into a C-cover of the information handling system and operatively coupled to the tuning integrated circuit to receive excitation currents at the speaker grill, the speaker grill including:
• a slot formed through the C-cover and around a portion of the speaker grill forming a peninsula on the speaker grill that operates as an antenna tuned to a target RF band based on the length of the slot;
• and
• a cavity formed on a back side of the peninsula, the cavity including walls formed around and along a perimeter of the back side of the peninsula.