Conical horn antenna with flare break and impedance output structure

A horn antenna positioned with respect to a central axis comprising

• a conical horn portion including two ends, one of the ends of greater diameter than the other end,
• the conical horn portion including a smooth interior wall without corrugations defining a cavity, the end of greater diameter defining an interfacing end;
• and
• an output structure positioned at the interfacing end,
• the output structure including at least one dielectric region such that the flow of electrical current through the wall in the direction of the central axis is substantially impeded,
• wherein the output structure is a helical coil winding.

An array antenna comprising a plurality of horn antennas positioned with respect to a central axis, at least one of the plurality of horn antennas comprising

• a conical horn portion including two ends, one of the ends of greater diameter than the other end, the conical horn portion including a smooth interior wall without corrugations defining a cavity, the end of greater diameter defining an interfacing end;
• and
• an output structure positioned at the interfacing end of the conical horn portion, the output structure including at least one dielectric region such that the flow of electrical current through the wall in the direction of the central axis is substantially impeded,
• wherein the output structure includes at least one ring offset from the interfacing end of the conical horn portion by at least one post defining the at least one dielectric region between the interfacing end and the at least one ring.

A horn antenna positioned with respect to a central axis comprising

• a conical horn portion including two ends, one of the ends of greater diameter than the other end,
• the conical horn portion including a smooth interior wall without corrugations defining a cavity, the end of greater diameter defining an interfacing end;
• an output structure positioned at the interfacing end,
• the output structure including at least one dielectric region such that the flow of electrical current through the wall in the direction of the central axis is substantially impeded, wherein the conical horn portion includes a flare break portion at the end of greater diameter of the conical horn portion,
• the flare break portion including a smooth interior wall without corrugations,
• the flare break portion including an aperture,
• the aperture of the flare break portion defining the interfacing end of the conical horn portion.

An array antenna comprising a plurality of horn antennas positioned with respect to a central axis, at least one of the plurality of horn antennas comprising

• a conical horn portion including two ends, one of the ends of greater diameter than the other end, the conical horn portion including a smooth interior wall without corrugations defining a cavity, the end of greater diameter defining an interfacing end;
• and
• an output structure positioned at the interfacing end of the conical horn portion, the output structure including at least one dielectric region such that the flow of electrical current through the wall in the direction of the central axis is substantially impeded,
• wherein the conical horn portion includes a flare break portion at the end of greater diameter of the conical horn portion,
• the flare break portion including a smooth interior wall without corrugations,
• the flare break portion including an aperture,
• the aperture of the flare break portion defining the interfacing end of the conical horn portion.