| 摘要 |
An antenna includes a substrate, a signal feed portion, and a plurality of radiation units. The substrate has a first surface and a second surface. The signal feed portion is located on the substrate. The plurality of radiation units is located on the substrate, connected to the signal feed portion, and arranged in a radial shape. Each of the radiation units includes a radiation portion and a ground portion. The radiation portion is located on the first surface with one end connected to the signal feed portion. The ground portion is located on the second surface in symmetry with the radiation portion, with one end connected to the signal feed portion. A plurality of dipole antennas connected in parallel to the signal feed portion, so as to avoid a zero point generated on the single dipole antenna, such that a wave width of the antenna radiation has a large angle.
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