APPARATUS FOR CONTROLLING PERFORMANCE OF ANTENNA FOR MOBILE PHONE BY ROTATING ANTENNA HOUSING

摘要

PURPOSE: An apparatus for controlling performance of an antenna for mobile phone is provided to control revolutions and width of helical coils by rotating an antenna housing. CONSTITUTION: An antenna housing(100) is coupled to a main body housing and is divided into an upper housing and a lower housing. A plurality of helical coils(200) are installed in the inside of the upper housing and the lower housing. A coupling part(300) is installed at a predetermined position of the antenna housing in order to couple each housing to each other. A locker(400) is installed at the coupling part and is used for rotating each housing around a longitudinal center shaft to control revolutions and width of helical coils.