Electronic device

An electronic device, comprising:

• a metal back cover comprising a slot;
• and
• an antenna module disposed in the metal back cover, wherein the antenna module comprises:
• a first radiator with a feeding end;
• a second radiator physically connected to the first radiator and comprising a contact portion, wherein the contact portion is connected to the metal back cover;
• a third radiator physically connected to the second radiator and disposed beside the first radiator, wherein the third radiator comprises a first grounding terminal;
• a fourth radiator physically connected to the second radiator, wherein the third radiator is disposed between the first radiator and the fourth radiator, and the fourth radiator comprises a second grounding terminal;
• and
• a fifth radiator physically connected to the third radiator and the fourth radiator, wherein the feeding end, the first grounding terminal, and the second grounding terminal are all apart from the slot in a distance ranging from 3.5 mm to 10 mm so that the metal back cover has less effect on performance of the antenna module.