Electronic device with charging-coil independent rear-facing antenna

An electronic device comprising:

• a display;
• a housing having a dielectric housing wall opposite the display, the dielectric housing wall having a protrusion that defines a cavity;
• a printed circuit board disposed at least partially within the cavity, wherein the printed circuit board has a first surface facing the display and a second surface opposite the first surface and facing the dielectric housing wall;
• and
• an antenna having a patch element, an antenna ground, and a positive antenna feed terminal coupled to the patch element, wherein the patch element includes a first conductive trace patterned on a surface of the dielectric housing wall, a second conductive trace patterned on the first surface of the printed circuit, and a conductive interconnect that couples the first conductive trace to the second conductive trace.

A wristwatch comprising:

• conductive sidewalls;
• a display mounted to the conductive sidewalls;
• a dielectric wall opposite the display, wherein the dielectric wall has a first portion mounted to the conductive sidewalls and has a second portion that protrudes from the first portion and that defines a cavity;
• a circuit board in the cavity;
• a coil in the cavity and extending around the circuit board;
• a first conductive trace on the circuit board;
• a second conductive trace on the first portion of the dielectric wall;
• a conductive interconnect that couples the first conductive trace to the second conductive trace, wherein the conductive interconnect comprises a piece of metal that has a first end coupled to the second conductive trace, a second end opposite the first end, and a bend between the first end and the second end, the second end is bent towards the display, and the bend contacts the first conductive trace;
• and
• an antenna having a radiating element that includes the first conductive trace, the second conductive trace, and the conductive interconnect.