An antenna includes a first antenna body formed as a hollow cylindrical shape having a first outer surface, a first inner surface and a first radiation surface formed in a circular shape, a second antenna body accommodating the first antenna body inside the second antenna body, the second antenna body formed as a hollow cylindrical shape with a second outer surface, a second inner surface and a second radiation surface formed in a ring shape, a plurality of first partitions, and a plurality of second partitions, wherein a plurality of first radiation apertures, formed by the plurality of first partitions for radiating a first radio wave, is formed on the first radiation surface, and a plurality of second radiation apertures, formed by the plurality of second partitions for radiating a second radio wave, is formed on the second radiation surface.
Antenna and vehicle having the antenna
2018-07-10
Patent
Electronic Resource
English
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