Patent ID: 8797115
Filing Date: 2014-08-05
Classification: H01P,H01Q,H04B

Abstract:
1. A coupler configured to transmit and receive an electromagnetic wave by electromagnetic coupling between the coupler and another coupler, the coupler comprising: a line-shaped coupling element comprising a first open end and a second open end; a ground plane; a feeding element electrically connecting the coupling element and a feed point, the feeding element comprising a first end electrically connected to an intermediate portion of the coupling element between the first open end and the second open end, and a second end electrically connected to the feed point; and a short circuiting element electrically connecting the coupling element and the ground plane, the short circuiting element comprising a third end electrically connected to the intermediate portion of the coupling element, and a fourth end connected to the ground plane, wherein an electrical distance from the feed point to each of the first open end and the second open end is ¼ of a wavelength corresponding to a central frequency of the electromagnetic wave.