Patent ID: 7974066

Claim:
A wireless communication device, comprising: a printed circuit board (PCB) comprising a ground portion and an antenna clearance portion, wherein: the ground portion is configured with a plurality of first key contacts surrounded by an electrostatic ring on a portion of a top surface of the PCB, and a ground layer disposed on a portion of a bottom surface corresponding to the portion of the top surface; and the antenna clearance portion is configured with a plurality of second key contacts on another portion of the top surface of the PCB, a plurality of ground contacts and a plurality of microstrips on another portion of the bottom surface of the PCB corresponding to the another portion of the top surface, wherein the plurality of ground contacts correspond to the plurality of second key contacts respectively, and the plurality of microstrips electrically connect the plurality of ground contacts to the ground layer of the ground portion; at least one electrostatic protection element electrically connected to the plurality of second key contacts to protect the second key contacts from electrostatic interference; and an antenna disposed facing the another portion of the bottom surface.