Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor

A launcher, comprising:

• a generator;
• and
• a circuit coupled to the generator,
• wherein the circuit performs operations including:
• receiving a plurality of communication signals;
• and
• generating, by the generator according to the plurality of communication signals, a plurality of wireless signals that induces a plurality of electromagnetic waves that propagates guided by a dielectric layer of a conductor and without having an electrical return path, and wherein the plurality of electromagnetic waves is configured for a wave mode division multiplexing to at least reduce an interference between the plurality of electromagnetic waves and enables a receiving device to selectively retrieve, from each electromagnetic wave of the plurality of electromagnetic waves, one or more portions of the plurality of communication signals.

A method, comprising:

• receiving, by a receiving device, a plurality of electromagnetic waves bound at least in part to a dielectric layer of an uninsulated conductor,
• wherein the plurality of electromagnetic waves propagates along the dielectric layer on the uninsulated conductor without having an electrical return path,
• wherein the plurality of electromagnetic waves has a plurality of wave modes that at least reduces interference between the plurality of electromagnetic waves;
• and
• retrieving, by the receiving device, a plurality of communication signals from the plurality of electromagnetic waves.