Patent ID: 10804590

Abstract:
To provide excellent reception performance on a narrow area of an automotive window glass, it is provided an antenna to be arranged on a window glass of a vehicle, the antenna comprising: a core-side power feeding unit; an earth-side power feeding unit; a first element extending from the core-side power feeding unit; and a second element extending at an angle of approximately 90 degrees with respect to the first element from the core-side power feeding unit, the first element having a length of 3αλ/4+δ and the second element having a length of αλ/4−δ, or the first element having a length of 3αλ/4−δ and the second element having a length of αλ/4+δ, where λ refers to a wavelength of a reception frequency, α refers to a wavelength shortening rate of glass, and δ refers to an offset length for each of the first element and the second elements.