An omnidirectional circularly polarized (CP) antenna resembling a bird nest is provided. A center feeding probe (monopole antenna) capable of emitting an omnidirectional linearly polarized (LP) radiation pattern is electrically coupled to dielectric parallelepipeds. The dielectric parallelepipeds are evenly spaced with uniform angular intervals that angularly surround the probe; effectively acting as a polarizer capable of converting the omnidirectional LP radiation pattern into an omnidirectional CP radiation pattern.
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