Antenna structure with circularly polarized antenna beam

An antenna structure, comprising:

• a solid dielectric antenna having a feed point and an aperture;
• and
• a cable comprising a conductorless core coupled to the feed point of the solid dielectric antenna, wherein the conductorless core facilitates a propagation of electromagnetic waves to the feed point of the solid dielectric antenna without requiring an electrical return path, the electromagnetic waves guided by the conductorless core and convey data at non-optical frequencies, and wherein the electromagnetic waves generate a circularly polarized antenna beam pattern from the aperture of the solid dielectric antenna;
• and
• a coupler configured to receive electromagnetic signals and further to launch the electromagnetic waves on the conductorless core in accordance with a linearly polarized wave mode.

An antenna structure, comprising:

• a solid dielectric antenna having a feed point and an aperture;
• and
• a cable comprising a conductorless core coupled to the feed point of the solid dielectric antenna, an outer jacket and a dielectric foam that supports the conductorless core within the outer jacket, wherein the conductorless core facilitates a propagation of electromagnetic waves to the feed point of the solid dielectric antenna without requiring an electrical return path, the electromagnetic waves guided by the conductorless core, wherein the electromagnetic waves generate a circularly polarized antenna beam pattern from the aperture of the solid dielectric antenna;
• and
• a coupler configured to receive electromagnetic signals that convey data at non-optical frequencies and further to launch the electromagnetic waves on the conductorless core in accordance with a linearly polarized HE11 wave mode.