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    • 10. 发明授权
    • Lightweight antenna assembly comprising a whip antenna and a helical antenna mounted on a top end of the whip antenna
    • 轻量级天线组件包括鞭状天线和安装在鞭状天线顶端的螺旋天线
    • US06198448B1
    • 2001-03-06
    • US09123209
    • 1998-07-27
    • Fumihiro SuzukiKazuo Minegishi
    • Fumihiro SuzukiKazuo Minegishi
    • H01Q2100
    • H01Q1/244
    • In an antenna assembly (10) including a whip antenna (1, 9) provided with a stopper (5) of a conductive material at a lower end of the whip antenna, a helical antenna (2) provided with a conductive sleeve (6) mounted on a top end of the whip antenna, and a holder (4) of a conductive material for slidably holding the whip antenna, each of the stopper, the conductive sleeve, and the holder is of a light metal having a specific gravity not greater than 3 g/cm3. The holder is electrically connected to the stopper when the whip antenna is in an extended position. The holder is electrically connected to the conductive sleeve when the whip antenna is in a retracted position. The light metal may includes at least one of aluminum and magnesium. Alternatively, the light metal essentially consists of 0.4% or less Si, 0.7% or less Fe, 5.0-6.0% Cu, 0.30% or less Zn, 0.2-0.6% Bi, 0.2-0.6% Pb, and the balance Al in weight.
    • 在包括在鞭状天线的下端设置有导电材料的止动件(5)的鞭状天线(1,9)的天线组件(10)中,设置有导电套筒(6)的螺旋天线(2) 安装在鞭状天线的顶端,以及用于可滑动地保持鞭状天线的导电材料的保持器(4),止动件,导电套筒和保持器中的每一个都是比重不大的轻金属 超过3 g / cm3。 当鞭状天线处于延伸位置时,保持器电连接到止动器。 当鞭状天线处于缩回位置时,保持器电连接到导电套筒。 轻金属可以包括铝和镁中的至少一种。 或者,轻金属主要由0.4%或更少的Si,0.7%或更少的Fe,5.0-6.0%的Cu,0.30%或更少的Zn,0.2-0.6%的Bi,0.2-0.6%的Pb和其余的Al的重量组成 。