Multi-feed dielectric antenna system and methods for use therewith

• US 10,446,936 B2
• Filed: 12/07/2016
• Issued: 10/15/2019
• Est. Priority Date: 12/07/2016
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Henry, Paul Shala, Barnickel, Donald J., Barzegar, Farhad, Bennett, Robert, Gerszberg, Irwin, Willis, III, Thomas M.
• Primary Examiner(s): Tran, Hai V
• Application Number:
  US15/371,273
• Publication Number:
  US 20180159240A1
• Time in Patent Office: 1,042 Days
• Field of Search: 343702, 455 7
• CPC Class Codes: H01P 3/16 Dielectric waveguides, i.e. without a longitudinal conductor
• CPC Class Codes: H01Q 13/02 Waveguide horns
• CPC Class Codes: H01Q 13/24 constituted by a dielectric or ferromagnetic rod or pipe H01Q13/28 takes precedence
• CPC Class Codes: H01Q 15/24 Polarising devices; Polarisation filters H01Q15/12, H01Q15/22 take precedence
• CPC Class Codes: H01Q 19/08 for modifying the radiation pattern of a radiating horn in which it is located corrugated horns H01Q13/0208; producing a circular polarisation H01Q13/0241
• CPC Class Codes: H01Q 25/007 using two or more primary active elements in the focal region of a focusing device for operation on different wavebands H01Q5/22
• CPC Class Codes: H01Q 3/245 in the focal plane of a focussing device
• CPC Class Codes: H04B 2203/5425 improving S/N by matching impedance, noise reduction, gain control
• CPC Class Codes: H04B 2203/5441 Wireless systems or telephone
• CPC Class Codes: H04B 2203/5445 Local network
• CPC Class Codes: H04B 2203/5479 using repeaters
• CPC Class Codes: H04B 2203/5495 having measurements and testing channel
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals
• CPC Class Codes: H04B 3/58 Repeater circuits

Abstract

In accordance with one or more embodiments, an antenna system includes a dielectric antenna having a feed point, wherein the dielectric antenna is a single antenna. At least one cable having a plurality of conductorless dielectric cores is coupled to the feed point of the dielectric antenna, wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns.

Claims

1. An antenna system, comprising:

a dielectric antenna including a feed point, wherein the dielectric antenna is a single antenna; and

at least one cable comprising a plurality of conductorless dielectric cores directly coupled to the feed point of the dielectric antenna;

wherein electromagnetic waves that are guided by differing ones of the plurality of conductorless dielectric cores to the dielectric antenna result in differing ones of a plurality of antenna beam patterns.

2. The antenna system of claim 1, wherein the dielectric antenna operates to generate a wireless signal at an aperture of the dielectric antenna resulting from propagation of the electromagnetic waves through the dielectric antenna.

3. The antenna system of claim 1, wherein the at least one cable includes a dielectric cladding that supports the plurality of conductorless dielectric cores.

4. The antenna system of claim 3, wherein the at least one cable further includes an outer jacket.

5. The antenna system of claim 3, wherein the at least one cable lacks a conductive shield layer.

6. The antenna system of claim 3, wherein the plurality of conductorless dielectric cores has a first dielectric constant, wherein the dielectric cladding has a second dielectric constant, and wherein the first dielectric constant exceeds the second dielectric constant.

7. The antenna system of claim 3, wherein the dielectric cladding comprises a low density dielectric material.

8. The antenna system of claim 1, wherein the plurality of conductorless dielectric cores is coupled to differing spatial locations at the feed point of the dielectric antenna.

9. The antenna system of claim 1, wherein the electromagnetic waves propagate at least in part on an outer surface of the plurality of conductorless dielectric cores without utilizing an electrical return path.

10. The antenna system of claim 1, wherein a launcher is configured to generate the electromagnetic waves on a corresponding one of the plurality of conductorless dielectric cores.

11. The antenna system of claim 10, wherein the plurality of conductorless dielectric cores are constructed integrally with the feed point of the dielectric antenna.

12. The antenna system of claim 1, wherein the dielectric antenna has a flared structure.

13. The antenna system of claim 1, wherein the dielectric antenna has a pyramidal structure.

14. The antenna system of claim 1, wherein the dielectric antenna is conductorless.

15. A method, comprising:

receiving, by a feed point of a single dielectric antenna, first electromagnetic waves from one of a plurality of dielectric cores directly coupled to the feed point of the single dielectric antenna;

directing, by the feed point, the first electromagnetic waves to a proximal portion of the single dielectric antenna; and

radiating, via an aperture of the single dielectric antenna, a first wireless signal responsive the first electromagnetic waves at the aperture.

16. The method of claim 15, wherein each of the plurality of dielectric cores is surrounded, at least in part, by a dielectric cladding.

17. The method of claim 15, wherein the first electromagnetic waves that are guided by differing ones of the plurality of dielectric cores to the single dielectric antenna result in differing ones of a plurality of antenna beam patterns.

18. The method of claim 15, further comprising:

receiving, by the single dielectric antenna, a second wireless signal; and

directing second electromagnetic waves, generated by the single dielectric antenna in response to the second wireless signal, to one of the plurality of dielectric cores.

19. An antenna structure, comprising:

a dielectric horn antenna comprising a dielectric material, wherein the dielectric horn antenna is a single antenna; and

means for guiding electromagnetic waves to the dielectric horn antenna via one of a plurality of dielectric cores directly connected to a feed-point of the dielectric horn antenna, wherein the electromagnetic waves guided by the one of the plurality of dielectric cores result in a corresponding one of a plurality of antenna beam patterns.

20. The antenna structure of claim 19, wherein the dielectric horn antenna operates to generate a wireless signal having the corresponding one of the plurality of antenna beam patterns, the wireless signal resulting from propagation of the electromagnetic waves through the dielectric horn antenna.