Portable electronic device

An electronic device comprising:

• housing defining an aperture;
• a display assembly positioned in the aperture;
• and
• an antenna, comprising:
• antenna circuitry;
• a resonant structure comprising a sheet of conductive material disposed between the housing and the display assembly, the resonant structure electrically coupled to the antenna circuitry;
• and
• a conductive shunt disposed between the resonant structure and the housing, wherein the conductive shunt is part of an accessory sensing circuit.

An electronic device, comprising:

• a housing defining an aperture, the housing comprising a first housing segment and a second housing segment;
• a display assembly positioned in the aperture;
• an antenna, comprising:
• antenna circuitry;
• and
• a resonant structure comprising a sheet of conductive material disposed between the housing and the display assembly, the resonant structure electrically coupled to the antenna circuitry and to the first housing segment;
• and
• a dielectric component disposed between the resonant structure and the housing, the dielectric component mechanically coupling the first housing segment to the second housing segment.