Patent ID: 8294630
Filing Date: 2012-10-23
Classification: H01Q

Abstract:
1. An antenna, comprising: a signal line; a ground line; a first radiation element, electrically connected to the signal line, comprising a first U-shaped section and a first extension section, wherein the signal line is connected to an end of the first U-shaped section, the first extension section is connected to the other end of the first U-shaped section, the first U-shaped section comprises a first notch, and the first notch extends longitudinally in a first direction; and a second radiation element, electrically connected to the ground line, comprising a second U-shaped section and a second extension section, wherein the ground line is connected to an end of the second U-shaped section, the second extension section is connected to the other end of the second U-shaped section, the second U-shaped section comprises a second notch, the second notch extends longitudinally in the first direction, the first U-shaped section is near the second U-shaped section, when the antenna transmits a first wireless signal, the first U-shaped section couples the second U-shaped section to transmit the first wireless signal, the first wireless signal comprises a first wavelength λ wherein a sum of a depth of the second notch in the first direction and a line width of a bottom of the second U-shaped section in the first direction is greater than the sum of the depth of the first notch in the first direction and the line width of a bottom of the first U-shaped section in the first direction, wherein the first U-shaped section comprises a first major coupling portion and a first minor coupling portion connected by the bottom of the first U-shaped section, the first major coupling portion is located between the first minor coupling portion and the signal line, and a line width of the first major coupling portion in a second direction perpendicular to the first direction is greater than a line width of the first minor coupling portion in the second direction, wherein the second U-shaped section comprises a first coupling portion and a second coupling portion connected by a bottom of the second U-shaped section, wherein the line width of the first major coupling portion in the second direction is greater than a maximum line width of both the first coupling portion and the second coupling portion of the second U-shaped section in the second direction.