Ace Technology

In Soo Whang

Rack June Baek

An antenna assembly for reducing the receiving space in a portable phone which employs the antenna assembly and for enhancing the bandwidth and radiation efficiency when the antenna assembly is in a retracted position. The antenna assembly includes a helical antenna and a whip antenna. The helical antenna is powered by capacitive coupling between a conductive layer therein and a feed conductor electrically connected to a signal processing circuit in the portable phone. Also, the whip antenna consists of two stages in a vertical direction in a manner that one of the stages can be retracted into the other one. The helical antenna includes a conducting layer disposed beneath the helical element; the feed conductor electrically connected to the signal processing circuit at least when said antenna assembly is retracted into the portable phone; and an insulating layer disposed between the conducting layer and the feed conductor. The whip antenna includes a spring attached to the antenna rod; a tube having a cylindrical shape capable of receiving at least lower half of the antenna rod; and a stopper attached to the bottom end of the tube and contacting the antenna rod selectively. The tube has a sill at the top end thereof for holding and preventing the spring attached to the antenna rod from slipping out of the tube

Growing community of inventors

Anyang, South Korea

In Soo Whang