Communication cable having a plurality of uninsulated conductors forming interstitial areas for propagating electromagnetic waves therein and method of use

A method, comprising:

• receiving, at a cable, a first communication signal and a power signal;
• propagating, by the cable, the power signal as an electrical signal utilizing an electrical return path;
• and
• propagating, by the cable and responsive to the first communication signal, first guided electromagnetic waves, wherein the first guided electromagnetic waves are guided by a first hollow structure within the cable and propagate within the cable without requiring the electrical return path and wherein the first guided electromagnetic waves are within a millimeter wave frequency band.

A method, comprising:

• receiving, at a stranded cable, a communication signal and a medium voltage power signal;
• propagating, by the stranded cable, the medium voltage power signal as an electrical signal utilizing an electrical return path;
• and
• propagating, by the stranded cable and responsive to the communication signal, guided electromagnetic waves, wherein the guided electromagnetic waves are guided by an interstice between uninsulated strands of the stranded cable and propagate within the stranded cable without requiring the electrical return path.