Patent ID: 8723732

Claim:
A dielectric resonator antenna embedded in a multilayer substrate, comprising: multilayer substrate provided with a plurality of insulating layers stacked one on top of another; a first conductive plate formed on a top of an uppermost insulating layer of the multilayer substrate and provided with an opening in the center; a second conductive plate formed in the center of a bottom of a lowermost insulating layer of at least two insulating layers which are formed on a bottom of the first conductive plate, the second conductive plate being disposed at a location corresponding to that of the opening and the uppermost insulating layer being one of the at least two insulating layers that are formed on the bottom of the first conductive plate; a plurality of first metal via holes configured to electrically connect layers between the uppermost insulating layer and the lowermost insulating layer, and vertically formed through the multilayer substrate so that the first metal via holes surround the opening of the first conductive plate at predetermined intervals and form vertical metal interfaces; a feeding part configured to include a feed line for applying a high-frequency signal to a dielectric resonator which is embedded in the multilayer substrate in a shape of a cavity by the first conductive plate, the second conductive plate, and the metal interfaces formed by the first metal via holes; and a conductive pattern part inserted into the dielectric resonator so that a vertical metal interface intersecting the feed line is formed in the dielectric resonator, wherein the high-frequency signal resonated at a particular frequency is radiated through the opening of the first conductive plate when the high-frequency signal is passed through the feed line in a metal interface formed by the first conductive plate, the second conductive plate and a plurality of the first metal via holes, wherein the area of the second conductive plate is at least the cross sectional area of the metal interfaces formed by the first metal via holes, and wherein the conductive pattern part comprises: a plurality of second metal via holes vertically formed through the multilayer substrate within the dielectric resonator: and One or more third conductive plates formed to be coupled to the plurality of second metal via holes between the insulatin layers through which the second metal via holes are formed, wherein the conductive pattern part forms the vertical interfaces insertecting the feed line in the dielectric resonator with a net-shaped conductive pattern by the second via holes and the one or more third conductive plates.