Importance

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Abstract

Dual-polarized antennas with ring balun excitation are disclosed. In certain embodiments, a dual-polarized antenna includes an antenna element and a ring balun for providing excitation of the antenna element. The ring balun includes conductive segments electrically connected in a ring, a first input port that receives a first single-ended RF signal of a first signal polarization, and a second input port that receives a second single-ended RF signal of a second signal polarization. The ring balun further includes a first output port and a second output port that collectively provide a first differential RF signal of the first signal polarization to the antenna element, and a third output port and a fourth output port that collectively provide a second differential RF signal of the second signal polarization to the antenna element.

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First Claim