Patent ID: 8743010
Filing Date: 2014-06-03
Classification: H01Q

Abstract:
1. An antenna device, comprising: a T-shaped element having a first end part, a second end part, and a third end part, the first end part being a feeding point, the T-shaped element being bifurcated at an intermediate point located between the second and third end parts; and a stub having one end connected between the intermediate point and the second end point and another end connected to ground, the stub forming a n-shaped configuration with the T-shaped element; wherein a length of a first line between the first end part and the second end part is longer than a length of a second line between the first end part and the third end part; the length of the first line and the length of the second line correspond to a first resonance frequency and a second resonance frequency, and a first band including the first resonance frequency and a second band including the second resonance frequency are adjusted based on a position of an antenna element of the T-shaped element to which the stub is connected, wherein the T-shaped element includes a first bending part at a head end of each of the second and third end parts, wherein the T-shaped element further includes another bending part provided at a head end of the bending part, and wherein a second bending part is formed by bending a head end of the first bending part in a direction parallel to the T-shaped element between the first bending parts.