This paper proposes a segmented parabolic curved antenna, which can be used in the base\nstation of a 60 GHz millimeter wave communication system, with an oblique Yagi antenna as a feed.\nBy analyzing the reflection and multi-path interference cancellation phenomenon when the main\nlobe of the Yagi antenna is reflected, the problem of main lobe splitting is solved. 3D printing\ntechnology relying on PLA (polylactic acid) granule raw materials was used to make the coaxial\nconnector bracket and segmented parabolic surface. The reflective surface was vacuum coated (via\naluminum evaporation) with low-loss aluminum. The manufacturing method is environmentally\nfriendly and the structure was printed with 0.1 mm accuracy based on large-scale commercial\napplications at a low cost. The experimental results show that the reflector antenna proposed in this\npaper achieves a high gain of nearly 20 dBi in 57â??64 GHz frequency band and ensures that the main\nlobe does not split.
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