Patent ID: 9219311
Filing Date: 2015-12-22
Classification: H01Q

Abstract:
1. A planar antenna, comprising: an antenna element, the antenna element including a ground element to be coupled to the antenna element, wherein the antenna element and the ground element are formed of a conductive film and arranged to form a rectangular shape with at least one gap between the antenna element and the ground element, wherein three adjacent sides of the ground element are aligned to three sides of the perimeter of the rectangular shape, wherein the body part has a shape of one of a polygon, a circle, a part of a polygon and a part of a circle, wherein a first side of the body part and a first side of the ground element are aligned with a fourth side of the perimeter of the rectangular shape, wherein the gap is open on the fourth side, wherein the antenna element and the ground element are formed on a same surface of a substrate, wherein the feeding line is one of a microstrip line and a coplanar waveguide, and extends linearly on the axis of symmetry from the body part to a side of the rectangular shape opposite to said fourth side so as to divide the ground element into a first portion and a second portion, wherein the at least one gap is defined by a second side of the body part and a second side of the ground element, and wherein the second side of the body part has a first end on the fourth side of the rectangular shape and a second end opposite to the first end, and a distance between the second side of the ground element and the second side of the body part from the first end to the second end thereof is uniform.