Patent ID: 8466849

Claim:
An antenna device for a portable terminal, comprising: a first radiator installed within the portable terminal; a second radiator including a rod antenna, the rod antenna elongated in a lengthwise direction and installed to be retractable into and extendable from the portable terminal; and a switch portion having at least one plate spring, for connecting a communication circuit portion of the portable terminal selectively to the first radiator or the second radiator, wherein the rod antenna is coated with an insulation material on the outer circumferential surface when the second radiator is retracted into the portable terminal, the second radiator interferes with the at least one plate spring on the outer circumferential surface of the rod antenna so that the communication circuit portion is connected to the first radiator through the at least one plate spring, and when the second radiator is extended from the portable terminal, the communication portion is connected to the second radiator through the at least one plate spring, wherein one end of the at least one plate spring has two bends in opposing directions as to create a shape of an “S” or a “Z”.