Patent ID: 9368860
Filing Date: 2016-06-14
CPC Classification: H01Q

Claim Text:
1. A patch antenna comprising: a dielectric layer; a ground electrode, which is arranged on one surface of the dielectric layer; a first patch, which is conductive, formed in a shape of a trapezoid, and arranged inside the dielectric layer, to be parallel with the ground electrode, and which transmits a signal having a first frequency, or receives the signal having the first frequency; a second patch, which is conductive, formed in a shape of a trapezoid, and arranged on the other surface of the dielectric layer, to be parallel with the first patch, and which transmits a signal having a second frequency, which is higher than the first frequency, or receives the signal having the second frequency; a first conductor, which electrically couples a short side of the first patch with the ground electrode; and a second conductor, which electrically couples a short side of the second patch with the ground electrode, wherein the first patch and the second patch are arranged such that the short side of the first patch and the short side of the second patch are located on a side of a first end of the dielectric layer and a long side of the first patch and a long side of the second patch are located on a side of a second end, which opposes to the first end; the first patch is fed power via a first feeding point, which is closer to the short side of the first patch than the long side of the first patch, and the second patch is fed power via a second feeding point, which is located between the first end and the short side of the first patch; an intensity of radiation in the first frequency along a plane that is parallel to a surface of the first patch is stronger than an intensity of radiation in the first frequency in a direction that is perpendicular to the surface of the first patch; and an intensity of radiation in the second frequency in a direction that is perpendicular to the surface of the second patch is stronger than an intensity of radiation in the second frequency along a plane that is parallel to a surface of the second patch.