GUIDED-WAVE TRANSMISSION DEVICE WITH NON-FUNDAMENTAL MODE PROPAGATION AND METHODS FOR USE THEREWITH

摘要

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.

主权项

1. An antenna system comprising:
an antenna; a transmission medium that facilitates wireless network connectivity via the antenna, wherein the transmission medium comprises a dielectric material having a largest cross sectional dimension; a coupler that couples a first electromagnetic wave having a carrier frequency to the transmission medium, wherein the coupling of the first electromagnetic wave to the transmission medium results in a second electromagnetic wave that is guided to propagate along the dielectric material 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 carrier frequency is above the cutoff frequency and a majority of an electric field strength of the second electromagnetic wave is concentrated within a distance from the dielectric material that is less than the largest cross sectional dimension.