Methods and apparatus for controllable coupling of an electromagnetic wave

• US 10,469,192 B2
• Filed: 12/01/2017
• Issued: 11/05/2019
• Est. Priority Date: 12/01/2017
• 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: Wolniansky, Peter, Vannucci, Giovanni, Henry, Paul Shala, Goodman-Frost, Zoe, Willis, III, Thomas M.
• Primary Examiner(s): Wolf, Darren E
• Application Number:
  US15/828,902
• Publication Number:
  US 20190173601A1
• Time in Patent Office: 704 Days
• Field of Search: None
• CPC Class Codes: G02B 6/29332 Wavelength selective couplers, i.e. based on evanescent coupling between light guides, e.g. fused fibre couplers with transverse coupling between fibres having different propagation constant wavelength dependency non wavelength-selective light guide couplers G02B6/28
• CPC Class Codes: H04B 10/40 Transceivers
• CPC Class Codes: H04B 10/50 Transmitters
• CPC Class Codes: H04B 10/60 Receivers
• CPC Class Codes: H04B 10/90 Non-optical transmission systems, e.g. transmission systems employing non-photonic corpuscular radiation
• CPC Class Codes: H04J 14/007 Orthogonal Optical Code Multiplex

Abstract

Aspects of the subject disclosure may include, a coupler having a first member coupled to a transmission medium, a first component coupled to the first member, a second member coupled to the transmission medium, and a second component coupled to the second member. The first component can facilitate transmission of first signals via the first member, and the second component can facilitate transmission of second signals via the second member. The first signals and the second signals can in turn induce electromagnetic waves that propagate along the transmission medium without requiring an electrical return path. Other embodiments are disclosed.

Claims

1. A coupler, comprising:

a first member coupled to a transmission medium;

a first component of a splitting device, the first component coupled to the first member at a proximal end of the first member, and wherein the first component comprises a first transmitter;

a second member coupled to the transmission medium; and

a second component of the splitting device, the second component coupled to the second member at a proximal end of the second member,

wherein the second component comprises a second transmitter,

wherein a distal end of each of the first member and the second member is separated from an outer surface of the transmission medium,

wherein the first component facilitates transmission of first signals via the first member,

wherein the second component facilitates transmission of second signals via the second member,

wherein the first signals differ from the second signals, and

wherein the first signals and the second signals induce first electromagnetic waves that propagate along the transmission medium without requiring an electrical return path.

2. The coupler of claim 1, wherein the first component comprises a first amplifier, a first phase shifter, or a combination thereof, wherein the second component comprises a second amplifier, a second phase shifter, or a combination thereof, and wherein the first component operates independently of the second component.

3. The coupler of claim 1, wherein a first operation of the first component is adjustable independently of a second operation of the second component.

4. The coupler of claim 1, wherein a first adjustment of a first operation of the first component, a second adjustment of a second operation of the second component, or both results in an adjustment of a wave mode of the first electromagnetic waves.

5. The coupler of claim 1, wherein a first adjustment of a first operation of the first component, a second adjustment of a second operation of the second component, or both enables mitigation of an obstruction that adversely affects a propagation of the first electromagnetic waves along the transmission medium.

6. The coupler of claim 5, wherein the obstruction comprises an accumulation of water on the outer surface of the transmission medium.

7. The coupler of claim 1, wherein a first operation of the first component, a second operation of the second component, or both induces the first electromagnetic waves according to an impedance of the transmission medium, a diameter of the transmission medium, a dielectric material disposed on the transmission medium, or any combinations thereof.

8. The coupler of claim 1, wherein a first operation of the first component, a second operation of the second component, or both steers the first signals, the second signals, or both to induce the first electromagnetic waves.

9. The coupler of claim 1, wherein the first component facilitates receiving via the first member a first portion of second electromagnetic waves propagating along the transmission medium, and wherein the second component facilitates receiving via the second member a second portion of the second electromagnetic waves propagating along the transmission medium.

10. The coupler of claim 1, wherein the first component comprises a first receiver, wherein the second component comprises a second receiver, and wherein the first component and the second component are configured according to a first multi-input multi-output (MIMO) transmission technique for transmitting the first electromagnetic waves, a second MIMO reception technique for receiving second electromagnetic waves, or a combination thereof.

11. The coupler of claim 1, further comprising a base coupled to the outer surface of the transmission medium for supporting the first member, the first component of the splitting device, the second member, the second component of the splitting device, or any combinations thereof.

12. The coupler of claim 11, wherein the base comprises a grounding structure for the first component, the second component, or a combination thereof.

13. The coupler of claim 1, wherein the first member comprises a first conductive member, and wherein the second member comprises a second conductive member.

14. The coupler of claim 1, wherein the first member and the second member are non-linear.

15. The coupler of claim 1, wherein portions, other than the distal end, of each of the first member and the second member are separated from the outer surface of the transmission medium.

16. The coupler of claim 1, wherein the transmission medium comprises an insulated conductor, an uninsulated conductor, or a dielectric core.

17. A coupler, comprising:

a first member coupled to a transmission medium;

a first component coupled to the first member at a proximal end of the first member, wherein the first component comprises a first transmitter;

a second member coupled to the transmission medium; and

a second component coupled to the second member at a proximal end of the second member,

wherein the second component comprises a second transmitter,

wherein the first component facilitates transmission of first signals via the first member,

wherein the second component facilitates transmission of second signals via the second member,

wherein the first member is decoupled from the second member, and

wherein the first signals and the second signals induce electromagnetic waves that propagate along the transmission medium without requiring an electrical return path.

18. The coupler of claim 17, wherein a first operation of the first component, a second operation of the second component, or both induces the electromagnetic waves according to an impedance of the transmission medium, a diameter of the transmission medium, a dielectric material disposed on the transmission medium, or any combinations thereof.

19. A coupler, comprising:

a first member coupled to a transmission medium;

a first component coupled to the first member at a proximal end of the first member, wherein the first component comprises a first transmitter;

a second member coupled to the transmission medium; and

a second component coupled to the second member at a proximal end of the second member,

wherein the second component comprises a second transmitter,

wherein the first component facilitates receiving first signals via the first member,

wherein the second component facilitates receiving second signals via the second member,

wherein the first member is decoupled from the second member, and

wherein the first signals and the second signals are generated from electromagnetic waves that propagate along the transmission medium without requiring an electrical return path.

20. The coupler of claim 19, wherein the first component selectively processes the first signals and the second component selectively processes the second signals according to a multi-input multi-output (MIMO) technique.