Patent ID: 9184505
Filing Date: 2015-11-10
Classification: H01Q

Abstract:
1. A dielectric cavity antenna comprising: a multilayer substrate having an opening formed in at least a portion of a predetermined surface of the multilayer substrate; a dielectric cavity inserted into the multilayer substrate to radiate an electromagnetic wave signal through the opening; a feed line feeding power to the dielectric cavity; an impedance determining via connecting an uppermost layer and a conductor plate among the plurality of conductor plates, the conductor plate being immediately adjacent to the uppermost layer, to each other, the impedance determining via determining impedance of the feed line; and at least one metal pattern formed in an inner portion of the dielectric cavity or on a surface of the dielectric cavity to be electromagnetically coupled to the feed line, wherein the metal pattern electromagnetically coupled to the feed line is changed, such that impedance formed by the feed line and the metal pattern is changed, and the feed line and an entire portion of the at least one metal pattern are disposed on the same layer of the multilayer substrate.