Patent ID: 9748638
Date: 2017-08-29
CPC Classifications: H01Q

Claim:
1. An electronic device, comprising: a ground plane; a metal frame, having a plurality of gaps to form a frame element, wherein a first end of the frame element is electrically connected to the ground plane, and a second end of the frame element is an open end; a plurality of radiation elements, enclosed by the frame element, and each of the radiation elements being spaced by a coupling distance from the frame element; and a switching circuit, selecting one of the radiation elements to transmit a feeding signal, wherein when the feeding signal is transmitted to a first radiation element among the radiation elements, the electronic device operates in a first band through the first radiation element, and operates in a second band through the frame element, and when the feeding signal is transmitted to a second radiation element among the radiation elements, the electronic device operates in a third band through the second radiation element and operates in a fourth band through the frame element.