Patent ID: 8344950

Claim:
A dual-loop antenna, comprising: a grounding unit; a shorting unit having at least one shorting pin contacting the grounding unit; a feeding unit having at least one feeding pin separated from the at least one shorting pin by a predetermined distance and suspended above the grounding unit at a predetermined distance; a first loop radiating unit disposed above the grounding unit at a predetermined distance, wherein the first loop radiating unit has two ends respectively electrically connected to the shorting unit and the feeding unit, and the first loop radiating unit provides a first operating frequency band; and a second loop radiating unit disposed above the grounding unit at a predetermined distance and around the first loop radiating unit, wherein the second loop radiating unit has two ends respectively electrically connected to the shorting unit and the feeding unit, and the second loop radiating unit provides a second operating frequency band; a third loop radiating unit disposed above the grounding unit at a predetermined distance, wherein the third loop radiating unit has two ends respectively electrically connected to the shorting unit and the feeding unit, and the third loop radiating unit corresponds to the first loop radiating unit; and a fourth loop radiating unit disposed above the grounding unit at a predetermined distance and around the third loop radiating unit, wherein the fourth loop radiating unit has two ends respectively electrically connected to the shorting unit and the feeding unit, and the fourth loop radiating unit corresponds to the second loop radiating unit; wherein the first loop unit and the second loop unit are bent along with a line on a plane of the shorting unit and the feeding unit by a certain angle.