Dielectric antenna with an electromagnetic feed element and with an ellipsoidal lens made of a dielectric material
First Claim
1. Dielectric antenna, comprising:
- an electromagnetic feed element emitting electromagnetic radiation anda 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, andwherein 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.
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Accused Products
Abstract
A dielectric antenna with an electromagnetic feed element (2) and with a lens (3) made of a dielectric material, the feed element (2) emitting electromagnetic radiation (4) and the lens (3) being supplied with electromagnetic radiation (4) in the feed region (5), the lens (3) relaying the electromagnetic radiation (4) and radiating it with the transmission region (6). To configure these dielectric antennas such that the disadvantages of the dielectric antennas known from the prior art are at least partially avoided, first of all, the lens (3) is shaped essentially ellipsoidally at least in the transmission region (6) and the lens (3) is arranged relative to the feed element (2) such that the electromagnetic radiation (4) emitted by the lens (3) in the direction of maximum radiation (7) of the antenna has an essentially planar phase front.
241 Citations
4 Claims
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1. Dielectric antenna, comprising:
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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. - View Dependent Claims (2, 3)
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4. Dielectric antenna, comprising:
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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 ante nna, 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 with the spout-shaped part of the lens surrounding the outside of the hollow conductor wherein the electromagnetic feed element further comprises a plate-shaped flange from which the hollow conductor projects in a direction of maximum radiation of the antenna and wherein the spout-shaped part of the lens ends on the plate-shaped flange in a manner that at least partially covers said flange.
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Specification