Patent ID: 9577338
Date: 2017-02-21
CPC Classifications: H01Q

Claim:
1. An antenna located on a substrate, comprising: a radiating portion about λ/2 in length, wherein the λ indicates wavelength of electromagnetic signals radiated by the antenna; a first coupling and feeding portion comprising a feeding part and a coupling part; and a second coupling and feeding portion comprising a feeding part and a coupling part; wherein the feeding parts of the first coupling and feeding portion and the second coupling and feeding portion feed the electromagnetic signals to the radiating portion via respective coupling parts of the first coupling and feeding portion and the second coupling feeding portion; wherein a gap is defined between the coupling parts of the first and second coupling and feeding portions and the radiating portion; wherein the radiating portion comprises a first radiating part, a second radiating part and a third radiating part, wherein the first radiating part, the third radiating part, and the second radiating part are connected in series and collectively form a meandering pattern, wherein the first radiating part and the second radiating part are both in the shape of an “L” and are axial symmetric, wherein the third radiating part is in a strip shape, where the first radiating part, the third radiating part, and the second radiating part collectively form a rectangle with a gap defined at center of one side of the rectangle; wherein the substrate comprises a first surface and a second surface opposite to the first surface, wherein the first and second coupling and feeding portions are located on the first surface of the substrate, wherein the radiating portion are located on the second surface of the substrate; wherein a projection of the radiating portion on the first surface overlaps with the each coupling part of the first and second coupling and feeding portions, wherein the gap is defined between the coupling parts of the first and second coupling and feeding portions and the radiating portion due to a partition/separation of the substrate.