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    • 8. 发明专利
    • Antenna device
    • 天线设备
    • JP2012244289A
    • 2012-12-10
    • JP2011110484
    • 2011-05-17
    • Mitsubishi Electric Corp三菱電機株式会社
    • GOTO JUNYAMAGUCHI SATOSHITAKAHASHI TORU
    • H01Q13/08H01Q13/28H01Q21/06
    • PROBLEM TO BE SOLVED: To provide an antenna device in which deterioration of radiation characteristics due to radiation from a coaxial line is prevented, and loss is reduced especially in the high frequency area.SOLUTION: The antenna device 10 comprises: a conductor plate 1 provided with slots 1a having a length approximately 1/2 of the wavelength of a first high frequency signal; a cavity 4 which supplies the first high frequency signal to the slot 1a; a first lattice-shaped conductor plate 3 the length of one side of which is approximately 1/2 of the wavelength of a second high frequency signal; a first dielectric substrate 2 sandwiched between the conductor plate 1 and the first lattice-shaped conductor plate 3; and a first coaxial line 5 having an inner conductor being short-circuited to the first lattice-shaped conductor plate 3 and an outer conductor being short-circuited to the conductor plate 1 and placed on a first center line 6a dividing the first lattice-shaped conductor plate 3 equally into two, and supplying the second high frequency signal to the first lattice-shaped conductor plate 3.
    • 解决的问题:提供一种天线装置,其中防止来自同轴线路的辐射引起的辐射特性的劣化,并且特别是在高频区域中损耗降低。 天线装置10包括:导体板1,其设置有长度为第一高频信号的波长的大约1/2的狭槽1a; 空腔4,其将第一高频信号提供给槽1a; 第一格子状导体板3,其一侧的长度约为第二高频信号的波长的1/2; 夹在导体板1和第一格子状导体板3之间的第一电介质基板2; 以及具有与第一格子状导体板3短接的内部导体的第一同轴线5和与导体板1短路的外部导体,配置在分割第一格子状导体板3的第一中心线6a上 导体板3等同地分成两个,并将第二高频信号提供给第一格子状导体板3.版权所有:(C)2013,JPO&INPIT