Patent ID: 8174458
Filing Date: 2012-05-08
Classification: H01Q

Abstract:
1. A dual-feed antenna, comprising: a substrate, further comprising a first surface and a second surface opposite to the first surface; a first antenna unit, further comprising a first radiating unit and a first grounding unit, which first radiating unit and first grounding unit being respectively formed on a first surface of the substrate; and a second antenna unit, further comprising a second radiating unit and a second grounding unit, which second radiating unit and second grounding unit are respectively formed on the first surface and a second surface of the substrate, and which second grounding unit is in proximity of the first grounding unit; wherein the second radiating unit further comprises a second radiator which has a first groove including a first bottom and a pair of first arms; the second grounding unit consists of a first sub-grounding-area and a second sub-grounding-area, in which the second sub-grounding-area has a second groove including a second bottom and a pair of second arms, and in which the first sub-grounding-area is cross-wise connected with the second sub-grounding-area at the bottom of the groove, and the second arms symmetrically are distributed to both sides of the first sub-grounding-area; the first groove has an opening direction opposite to the opening direction of the second groove.