Abstract: A portable radio transceiver of the invention includes an antenna base portion, a coil spring for producing a predetermined repulsive force between an antenna base portion and a casing and a hook portion for housing the antenna base portion within a rear surface of the casing when the coil spring is compressed. One end portion of the antenna base portion is constituted with a pin shaped shaft fixedly implanted in the casing and a rotary base portion in the form of a hollow cylinder having an elliptic cross section. The rotary base portion which is movable along an axis of the hollow portion thereof and and rotatable therein is biased by the coil spring in a direction away from the casing. When a communication is to be done, the antenna is rotated to protrude it in a direction away from a user to thereby reduce influence of the user on the antenna.

Abstract: A cellular portable radiotelephone including a first housing having at least a telephone receiving section, and a second housing slidably and pivotally mounted to the first housing and capable of being housed in the first housing, the second housing having a front surface, a rear surface serving as a slide surface to slide on the first housing, and a key operating section, wherein a display is disposed on the first or second housing, and a telephone transmitting section is disposed on the second housing.