System and method for operation of a hinge cavity antenna

A chassis assembly for an information handling system comprising:

• a base chassis assembly including a C-cover and a metal D-cover, the base chassis assembly housing components for an information handling system including a processor and a memory;
• a display chassis assembly including a metal A-cover and a B-cover;
• a flexible cable operatively coupling, via a ground path to shunt surface currents, between the base chassis assembly metal D-cover and the display chassis assembly metal A-cover;
• a hinge assembly including a hinge edge coupling point, operatively coupling the base chassis assembly to the display chassis assembly to form a hinge gap between the metal D-cover and the metal A-cover;
• the hinge assembly including an antenna element, an antenna cavity, and an antenna aperture integrated into the hinge assembly and the antenna element to emit a radio frequency signal;
• and
• wherein a ground path of the flexible cable is operatively coupled across the hinge gap relative to the hinge edge coupling point to determine a length to tune a contained hinge gap resonant cavity for an operating frequency of the radio frequency signal emitted by the antenna aperture.

An information handling system to transmit a communication signal comprising:

• a wireless interface adapter to selectively apply radiofrequency signal to an antenna element operatively coupled to an antenna aperture;
• a base chassis assembly containing components of the information handling system including a C-cover and a metal D-cover a processor, a memory, and the antenna element, wherein the antenna element is disposed along a back edge of the base chassis assembly along a hinge gap;
• a display chassis assembly including a display screen and a metal A-cover;
• a hinge mechanically coupling the base chassis assembly to the display chassis assembly and forming the hinge gap between the display chassis assembly and the base chassis assembly;
• and
• a flexible cable operatively coupling the metal A-cover to the metal D-cover to form a shunt of surface currents between the metal A-cover and the metal D-cover for a contained hinge gap resonant cavity to contain radiofrequency resonance occurring within the hinge gap.