In order to ensure the degree of isolation between a plurality of antenna elements disposed in a narrow space while reducing the size of a vehicle-mounted antenna device, a vehicle-mounted antenna device (100) is provided with an antenna case (101), a chassis (102) that forms a housing space together with the antenna case (101), and a first antenna element (122) and a second antenna element (123) that are housed in the housing space. The first antenna element (122) and the second antenna element (123) transmit or receive at least radio waves of different frequency bands. The first antenna element (122) has, in at least a portion thereof, a meandering shape in a first direction that intersects the polarized wave of the radio wave transmitted or received by the second antenna element (123).
为了在将车载天线装置小型化的同时确保配置在狭窄空间内的多个天线振子彼此的隔离度,车载天线装置(100)具备天线壳体(101)、与天线壳体(101)一起形成收纳空间的底座(102)和被收纳于收纳空间的第1天线振子(122)及第2天线振子(123)。第1天线振子(122)和第2天线振子(123)至少发送或接收不同频带的电波。第1天线振子(122)在至少一部分具有与第2天线振子(123)发送或接收的电波的极化波交叉的第1方向上的蜿蜒形状。
Vehicle-mounted antenna device
车载用天线装置
2023-06-27
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Vehicle-mounted antenna device and vehicle-mounted device
European Patent Office | 2023
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