Methods and apparatus for adjusting a phase of electromagnetic waves
First Claim
1. A device, comprising:
- a first phase shifter; and
a plurality of waveguides including a first waveguide and a second waveguide, the first waveguide coupled to a first coupler, and the second waveguide coupled to a second coupler, the first and second waveguides being in different azimuthal positions with respect to a transmission medium,wherein the first waveguide facilitates coupling to the transmission medium, via the first coupler, a first electromagnetic wave having a first phase,wherein the second waveguide facilitates coupling to the transmission medium, via the second coupler, a second electromagnetic wave having a second phase,wherein a combined electromagnetic wave, formed from combining at least the first and second electromagnetic waves, propagates along the transmission medium without requiring an electrical return path, andwherein the combined electromagnetic wave has a wave mode based on the first phase of the first electromagnetic wave and the second phase of the second electromagnetic wave.
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Abstract
Aspects of the subject disclosure may include, generating, by a first hollow waveguide coupled to a first dielectric coupler, a first electromagnetic wave that couples onto a transmission medium, generating, by a second hollow waveguide coupled to a second dielectric coupler, a second electromagnetic wave that couples onto the transmission medium, combining the first electromagnetic wave and the second electromagnetic wave combine to form a combined electromagnetic wave that propagates along the transmission medium without requiring an electrical return path, and adjusting a first phase of the first electromagnetic wave, a second phase of the second electromagnetic wave, or both to adjust a wave mode of the combined electromagnetic wave. Other embodiments are disclosed.
291 Citations
20 Claims
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1. A device, comprising:
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a first phase shifter; and a plurality of waveguides including a first waveguide and a second waveguide, the first waveguide coupled to a first coupler, and the second waveguide coupled to a second coupler, the first and second waveguides being in different azimuthal positions with respect to a transmission medium, wherein the first waveguide facilitates coupling to the transmission medium, via the first coupler, a first electromagnetic wave having a first phase, wherein the second waveguide facilitates coupling to the transmission medium, via the second coupler, a second electromagnetic wave having a second phase, wherein a combined electromagnetic wave, formed from combining at least the first and second electromagnetic waves, propagates along the transmission medium without requiring an electrical return path, and wherein the combined electromagnetic wave has a wave mode based on the first phase of the first electromagnetic wave and the second phase of the second electromagnetic wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12.
a first phase shifter; -
a second phase shifter; and a plurality of waveguides including a first waveguide and a second waveguide, the first waveguide coupled to a first coupler, and the second waveguide coupled to a second coupler, the first and second waveguides being in different azimuthal positions with respect to a transmission medium, wherein the first waveguide facilitates coupling to the transmission medium, via the first coupler, a first electromagnetic wave having a first phase, wherein the second waveguide facilitates coupling to the transmission medium, via the second coupler, a second electromagnetic wave having a second phase, wherein a combined electromagnetic wave, formed from combining at least the first and second electromagnetic waves, propagates along the transmission medium without requiring an electrical return path, and wherein the combined electromagnetic wave has a wave mode based on the first phase of the first electromagnetic wave and the second phase of the second electromagnetic wave. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method, comprising:
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adjusting, by a first phase shifter, a first electromagnetic wave to have a first phase; coupling, by a first waveguide, the first electromagnetic wave to a transmission medium via a first coupler; and coupling, by a second waveguide, a second electromagnetic wave to the transmission medium via a second coupler, the second electromagnetic wave having a second phase; wherein the first waveguide is coupled to the first coupler, and the second waveguide is coupled to the second coupler; wherein the first and second waveguides are in different azimuthal positions with respect to the transmission medium; wherein a combined electromagnetic wave, formed from combining at least the first and second electromagnetic waves, propagates along the transmission medium without requiring an electrical return path; and wherein the combined electromagnetic wave has a wave mode based on the first phase of the first electromagnetic wave and the second phase of the second electromagnetic wave. - View Dependent Claims (19, 20)
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Specification