Electronic device with foot antenna

An antenna comprising:

• a grounded plate;
• folded sheet metal mounted to the grounded plate, wherein the grounded plate and the folded sheet metal surround a cavity having an open end;
• a dielectric wall that is mounted to the folded sheet metal and the grounded plate and that overlaps the open end of the cavity;
• a resonating element mounted to the dielectric wall within the cavity, wherein the resonating element includes
• a first segment,
• a second segment coupled to the first segment at a first fold of the antenna resonating element, and
• a third segment coupled to the second segment at a second fold of the antenna resonating element;
• and
• a return path that couples the antenna resonating element to the grounded conductive plate.

An electronic device comprising:

• a housing that includes a first wall, a second wall parallel to the first wall, and a third wall that is curved and that couples the first wall to the second wall;
• and
• an antenna mounted to the second wall within the housing, wherein the antenna includes
• a conductive plate,
• a conductive cavity mounted to the conductive plate,
• a dielectric wall mounted to the conductive plate, wherein the dielectric wall has a first surface facing the third wall and extending parallel to the third wall, and
• an antenna resonating element mounted to a second surface of the dielectric wall opposite the first surface.