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|1. (WO2018106684) METHODS AND APPARATUS FOR ADJUSTING A PHASE OF ELECTROMAGNETIC WAVES|
|Applicants:||AT&T INTELLECTUAL PROPERTY I, L.P.
|Inventors:||HENRY, Paul, Shala
WILLIS, Thomas, M., III
BARNICKEL, Donald, J.
|Title:||METHODS AND APPARATUS FOR ADJUSTING A PHASE OF ELECTROMAGNETIC WAVES|
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.