Patent ID: 9722314
Date: 2017-08-01
CPC Classifications: H01Q

Claim:
1. A patch antenna, comprising: a substrate configured with a dielectric material; a ground electrode formed on a first surface of the substrate; a radiation electrode having a rectangular shape formed in parallel to the ground electrode on a second surface of the substrate that is opposite to the first surface; and a slit formed in linear shape from an edge portion of a first side of the radiation electrode toward a center portion of the radiation electrode, wherein the slit is formed in parallel to a second side that is perpendicular to the first side and made shorter than the second side, each between the slit and the second side and a gap between the slit and a third side facing the second side is shorter than the second side, and a length of the first side of the radiation electrode is ½ of a wavelength of received radio waves.