Patent ID: 7158084

Claim:
A variable antenna apparatus for a mobile terminal, the variable antenna apparatus comprising: a radiation component, which is rotatably coupled with the mobile terminal; a feeding component, which is adjacent to a first end part of the radiation part and electrically connected to a radio frequency board of the mobile terminal; a grounding component, which is adjacent to the first end part of the radiation and selectively connected to a ground of the radio frequency board as the radiation component is rotated; and an antenna housing including a rotary housing that is rotatably coupled with the mobile terminal, and a receiving housing, which is integrally formed with the rotary housing, extends from an outer peripheral surface of the rotary housing, and receives the radiation component, wherein the receiving housing can be accommodated in the mobile terminal and protrudes as the rotary housing is rotated, and the feeding component is positioned at the rotary housing, which includes a feeding hole formed at one side of the rotary housing so as to face an outer peripheral surface of the mobile terminal, a feeding terminal electrically connected to a feeding part, an end of the feeding terminal protrudes through the feeding hole so as to slidably contact an outer peripheral surface of the mobile terminal if the rotary housing is rotated, and a feeding pad electrically connected to the radio frequency board and installed on the mobile terminal along a rotation trace of the feeding terminal, which is formed as the rotary housing is rotated.