Tokin Corporation

Fumihiro Suzuki

Kazuo Minegishi

In an antenna assembly (,) including a whip antenna (,) provided with a stopper (,) of a conductive material at a lower end of the whip antenna, a helical antenna (,) provided with a conductive sleeve (,) mounted on a top end of the whip antenna, and a holder (,) 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/cm,. 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.

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Sendai, Japan

Fumihiro Suzuki