To provide a cellular phone with higher antenna efficiency whose electromagnetic wave less affects the user's head.

During the use, a first antenna element 3, an inner electric conductor 4 and an outer electric conductor 5 are extended and high frequency power is applied to the base ends of the inner electric conductor 4 and the outer electric conductor 5. A ferrite member serves as an impedance. The inner electric conductor 4 and the outer electric conductor 5 as well as a coaxial cable serve to feed the element 3. The outer electric conductor 5 along with the element 3 also works as efficiently as the so-called vertical tablet antenna. Since the electric power lines 7 from the extended antenna are apart from the head 8 of a user, it less affects a human body.