Patent ID: 9136591
Filing Date: 2015-09-15
Classification: H01Q,H04B,H04W

Abstract:
1. A handheld device, comprising: a housing, having an outer surface and being configured to define a receiving space; a circuit board, being disposed in the receiving space; a planar antenna, comprising a single metal layer, wherein the single metal layer is patterned on the outer surface and comprises a first connecting point and a second connecting point; and a switch, comprising a first electrode and a second electrode, wherein the first electrode and the second electrode are electrically connected between the first connecting point and the second connecting point of the single metal layer and configured to control the electrical connection between the first connecting point and the second connecting point; wherein the planar antenna operates in a first central frequency band when the switch is turned on, and operates in a second central frequency band when the switch is turned off; and wherein the planar antenna further comprises a grounding connector and a feeding connector, the first connecting point is electrically connected to a grounding terminal of the circuit board via the grounding connector, and the second connecting point is electrically connected to a radio frequency (RF) signal terminal of the circuit board via the feeding connector, and the first electrode and the second electrode are electrically connected between the first connecting point and the second connecting point of the single metal layer via the grounding connector and the feeding connector respectively.