Patent ID: 7468698
Filing Date: 2008-12-23
Classification: H01Q

Abstract:
1. A patch antenna, comprising: a dielectric substrate; a substantially rectangular radiation element formed of a conductive material on the dielectric substrate; and a feeder line connected to a feeding point for feeding to the radiation element, wherein the feeding point has an impedance matching an impedance of the feeder line; and said radiation element including a concave part on a first side thereof opposite to a second side thereof on which the feeding point is formed, the concave part being open to an exterior side of the radiation element, wherein letting a length of the second side of the radiation element and a length of a side of the radiation element adjacent to the second side be A and B, respectively, the concave part of the radiation element is shaped substantially like a triangle having a base of A and a height greater than 0 and less than or equal to 0.2×B.