GUIDED-WAVE TRANSMISSION DEVICE WITH NON-FUNDAMENTAL MODE PROPAGATION AND METHODS FOR USE THEREWITH
First Claim
1. A transmission device comprising:
- a communications interface that receives a communication signal that includes first data;
a transceiver, coupled to the communications interface, that generates a first electromagnetic wave based on the communication signal to convey the first data; and
a coupler, coupled to the transceiver, that couples the first electromagnetic wave to a transmission medium having at least one inner portion surrounded by an insulating jacket composed of a dielectric material, the insulating jacket having an outer surface, wherein the coupling of the first electromagnetic wave to the transmission medium forms a second electromagnetic wave having at least one carrier frequency that is guided to propagate along the outer surface of the insulating jacket via at least one guided wave mode that includes a non-fundamental mode, wherein the non-fundamental mode has a cutoff frequency, and wherein the at least one carrier frequency is selected based on the cutoff frequency.
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Accused Products
Abstract
Aspects of the subject disclosure may include, for example, a transmission device that includes a transmitter that generates a first electromagnetic wave to convey data. A coupler couples the first electromagnetic wave to a single wire transmission medium having an outer surface, to forming a second electromagnetic wave that is guided to propagate along the outer surface of the single wire transmission medium via at least one guided wave mode that includes an asymmetric or non-fundamental mode having a lower cutoff frequency. A carrier frequency of the second electromagnetic wave is selected to be within a limited range of the lower cutoff frequency, so that a majority of the electric field is concentrated within a distance from the outer surface that is less than half the largest cross sectional dimension of the single wire transmission medium, and/or to reduce propagation loss. Other embodiments are disclosed.
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Citations
20 Claims
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1. A transmission device comprising:
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a communications interface that receives a communication signal that includes first data; a transceiver, coupled to the communications interface, that generates a first electromagnetic wave based on the communication signal to convey the first data; and a coupler, coupled to the transceiver, that couples the first electromagnetic wave to a transmission medium having at least one inner portion surrounded by an insulating jacket composed of a dielectric material, the insulating jacket having an outer surface, wherein the coupling of the first electromagnetic wave to the transmission medium forms a second electromagnetic wave having at least one carrier frequency that is guided to propagate along the outer surface of the insulating jacket via at least one guided wave mode that includes a non-fundamental mode, wherein the non-fundamental mode has a cutoff frequency, and wherein the at least one carrier frequency is selected based on the cutoff frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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generating a first electromagnetic wave based on a communication signal to convey first data; and coupling, by a coupler, the first electromagnetic wave to a transmission medium having at least one inner portion surrounded by an insulating jacket composed of a dielectric material, the insulating jacket having an outer surface, wherein the coupling of the first electromagnetic wave to the transmission medium forms a second electromagnetic wave having at least one carrier frequency that is guided to propagate along the outer surface of the insulating jacket via at least one guided wave mode that includes a non-fundamental mode, wherein the second electromagnetic wave has a first portion of signal energy that propagates inside of the insulating jacket and a second portion of signal energy that propagates outside of the insulating jacket, and where the second portion is greater than the first portion. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A transmission device comprising:
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means for generating a first electromagnetic wave based on a communication signal to convey first data; and means for coupling the first electromagnetic wave to a transmission medium having at least one inner portion surrounded by an insulating jacket composed of a dielectric material, the insulating jacket having an outer surface, wherein the coupling of the first electromagnetic wave to the transmission medium forms a second electromagnetic wave having at least one carrier frequency that is guided to propagate along the outer surface of the insulating jacket via at least one guided wave mode that includes a non-fundamental mode, wherein the second electromagnetic wave has a first portion of signal energy that propagates inside of the insulating jacket and a second portion of signal energy that propagates outside of the insulating jacket, and where the second portion is greater than the first portion. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification