Guided-wave transmission device with diversity and methods for use therewith
First Claim
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1. A transmission device comprising:
- a transmitter that generates a first electromagnetic wave conveying first data; and
a first coupler, coupled to the transmitter, that guides the first electromagnetic wave to a first junction for coupling the first electromagnetic wave to a transmission medium at a first azimuthal angle to form a second electromagnetic wave that is guided along an outer surface of the transmission medium via at least one guided-wave mode, wherein the second electromagnetic wave has an envelope that varies as a function of angular deviation from the first azimuthal angle, wherein the function has a local minimum at a first angular deviation from the first azimuthal angle, and wherein a third electromagnetic wave propagates along the outer surface of the transmission medium in a direction opposite to the first electromagnetic wave and conveys second data; and
a second coupler guides the third electromagnetic wave from a second junction coupling the third electromagnetic wave from the transmission medium at the first angular deviation from the first azimuthal angle to form a fourth electromagnetic wave that is guided to a receiver.
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Abstract
Aspects of the subject disclosure may include, for example, a transmission device that includes a first coupler that guides a first electromagnetic wave to a first junction to form a second electromagnetic wave that is guided to propagate along the outer surface of the transmission medium via one or more guided-wave modes. These mode(s) have an envelope that varies as a function of angular deviation and/or longitudinal displacement. Other embodiments are disclosed.
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Citations
22 Claims
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1. A transmission device comprising:
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a transmitter that generates a first electromagnetic wave conveying first data; and a first coupler, coupled to the transmitter, that guides the first electromagnetic wave to a first junction for coupling the first electromagnetic wave to a transmission medium at a first azimuthal angle to form a second electromagnetic wave that is guided along an outer surface of the transmission medium via at least one guided-wave mode, wherein the second electromagnetic wave has an envelope that varies as a function of angular deviation from the first azimuthal angle, wherein the function has a local minimum at a first angular deviation from the first azimuthal angle, and wherein a third electromagnetic wave propagates along the outer surface of the transmission medium in a direction opposite to the first electromagnetic wave and conveys second data; and a second coupler guides the third electromagnetic wave from a second junction coupling the third electromagnetic wave from the transmission medium at the first angular deviation from the first azimuthal angle to form a fourth electromagnetic wave that is guided to a receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A transmission device comprising:
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a transmitter that generates a first electromagnetic wave conveying first data; and a first coupler, coupled to the transmitter, that guides the first electromagnetic wave to a first junction for coupling the first electromagnetic wave to a transmission medium to form a second electromagnetic wave that propagates along an outer surface of the transmission medium via at least one guided-wave mode, wherein the second electromagnetic wave has an envelope that varies as a function of longitudinal displacement from the first junction, wherein the function has a local minimum at a first longitudinal displacement from the first junction, and wherein a third electromagnetic wave propagates along the outer surface of the transmission medium in a direction opposite to the first electromagnetic wave and conveys second data; and a second coupler guides the third electromagnetic wave from a second junction coupling the third electromagnetic wave from the transmission medium at the first longitudinal displacement from the first junction to form a fourth electromagnetic wave that is guided to a receiver. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method comprising:
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generating a first electromagnetic wave conveying first data from a transmitting device; guiding the first electromagnetic wave to a first junction for coupling the first electromagnetic wave to a transmission medium at a first azimuthal angle to forms a second electromagnetic wave that is guided to propagate along an outer surface of the transmission medium via at least one guided-wave mode, wherein the second electromagnetic wave has an envelope that varies as a function of angular deviation from the first azimuthal angle and wherein the function has a local minimum at a first angular deviation from the first azimuthal angle; and guiding a third electromagnetic wave from a second junction coupling the third electromagnetic wave from the transmission medium at the first angular deviation from the first azimuthal angle to form a fourth electromagnetic wave that is guided to a receiver, wherein the third electromagnetic wave propagates along the outer surface of the transmission medium in a direction opposite to the first electromagnetic wave and conveys second data. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method comprising:
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determining, by a waveguide system, a first transmission envelope of a first asymmetric electromagnetic wave, wherein the first transmission envelope has a first wavelength that reduces signal interference between the first asymmetric electromagnetic wave and a second asymmetric electromagnetic wave having a second transmission envelope at a second wavelength; and transmitting, by the waveguide system, the first asymmetric electromagnetic wave on an outer surface of a transmission medium according to the first transmission envelope at a same time the second asymmetric electromagnetic wave is propagating on the outer surface of the transmission medium; wherein the determining comprises determining an angular displacement between a first portion of a signal of the first asymmetric electromagnetic wave and a second portion of a signal of the second asymmetric electromagnetic wave; wherein the transmitting comprises adjusting the transmitting of the first asymmetric electromagnetic wave according to the angular displacement, and wherein the adjusting the transmitting of the first asymmetric electromagnetic wave according to the angular displacement comprises adjusting an operating frequency of asymmetric electromagnetic waves transmitted by the waveguide system or a location of a coupler of the waveguide system with respect to the transmission medium.
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Specification