Antenna system for wearable devices

A mobile electronic device comprising:

• an enclosure comprising a conductive material that is configured to house one or more internal electrical components disposed on a printed circuit board (PCB);
• a first grounding leg that forms an electrical ground between the PCB and the enclosure;
• a second, switchable grounding leg positioned at least a minimum specified distance away from the first grounding leg, the second, switchable grounding leg providing a controllable electrical ground between the PCB and the enclosure;
• and
• a controller configured to switch the second, switchable grounding leg on when the enclosure is coupled to a cradle and to switch the second, switchable grounding leg off when the enclosure is uncoupled from the cradle.

An apparatus, comprising:

• an enclosure comprising a conductive material that is configured to house one or more internal electrical components disposed on a printed circuit board (PCB);
• a first grounding leg that forms an electrical ground between the PCB and the enclosure;
• a second, switchable grounding leg positioned at least a minimum specified distance away from the first grounding leg, the second, switchable grounding leg providing a controllable electrical ground between the PCB and the enclosure;
• and
• a controller configured to switch the second, switchable grounding leg on when the enclosure is coupled to a cradle and to switch the second, switchable grounding leg off when the enclosure is uncoupled from the cradle.