Patent ID: 8917215

Claim:
Dielectric antenna, comprising: an electromagnetic feed element emitting electromagnetic radiation and a lens made of a dielectric material, the lens being supplied with electromagnetic radiation in a feed region and relaying and radiating the electromagnetic radiation in a transmission region, wherein the lens is ellipsoidally shaped at least in the transmission region and the lens is arranged relative to the feed element such that the electromagnetic radiation emitted by the lens has an essentially planar phase front in a direction of maximum radiation of the antenna, wherein the electromagnetic feed element is located essentially at a focal point of the ellipsoid defined by the at least ellipsoidally shaped transmission region of the lens, wherein the electromagnetic feed element comprises a hollow conductor, the hollow conductor being located coaxially relative to the major axis of the lens, wherein the lens is ellipsoidal beginning essentially with the feed region thereof in the direction of maximum radiation and has a projecting spout-shaped part facing opposite the direction of maximum radiation, wherein the lens is attached to the outside of the hollow conductor, the spout-shaped part of the lens surrounding the outside of the hollow conductor, and wherein the spout-shaped part of the lens is formed as a cylindrical extension of the ellipsoidally shaped transmission region that is screwed onto a thread of the hollow conductor.