Patent ID: 9590304
Date: 2017-03-07
CPC Classifications: H01Q

Claim:
1. A broadband antenna used in a wireless communication device, comprising: a substrate; a grounding unit, for providing ground; a first radiating element, comprising a first segment and a second segment, substantially perpendicular to each other, wherein the first segment is electrically connected to the grounding unit and the second segment extends toward a direction; a second radiating element, coupled to the first radiating element; a third radiating element, having a terminal coupled to or electrically connected to the second radiating element and another terminal electrically connected to the grounding unit; and a signal feed-in element, electrically connected with the third radiating element for transmitting or receiving a radio signal; wherein the first, the second, and the third radiating elements are disposed on the substrate along the direction defined by an order of the first segment of the first radiating element, the second radiating element and the third radiating element; wherein the third radiating element and the second segment of the first radiating element are coupled with each other; wherein the third radiating element is formed on a first surface of the substrate, the second radiating element is formed on a second surface of the substrate parallel to the first surface, and the first radiating element is formed on the first surface or the second surface of the substrate; wherein the third radiating element further comprises a feed-in area, the signal feed-in element connects to a feed-in point in the feed-in area, the second radiating element further comprises a feed-in coupling area, and the feed-in area of the third radiating element substantially overlaps a projected area defined by projecting the feed-in coupling area of the second radiating element onto the first surface of the substrate.