Antenna device
AssigneeYokowo Co., Ltd.
InventorsBunpei HARA, Seiya HIROKI
Life of this patent
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Abstract
An antenna device (100) for a vehicle includes an antenna case (101), an antenna base (102) forming an accommodation space together with the antenna case (101), a first antenna element (108) that is accommodated in the accommodation space and that at least transmits or receives a circularly polarized wave; a second antenna element (110) that is arranged close to the first antenna element (108) and that at least transmits or receives a linearly polarized wave; and at least one parasitic element (111), (112a), (112b), or (112c) serving as a reflector or a waveguide for the second antenna element (110).
Claims10
An antenna device comprising:
- a case;
- a base forming an accommodation space together with the case;
- a first antenna element that is accommodated in the accommodation space and that at least transmits or receives a circularly polarized wave;
- a second antenna element that is arranged close to the first antenna element and that at least transmits or receives a linearly polarized wave;
- and
- at least one parasitic element serving as a reflector or a waveguide for the second antenna element.
Dependencies are inferred from the claim text.