Patent ID: 7177667

Claim:
An antenna remote control apparatus for a base station in a mobile communication system, comprising: a remote controller for matching a driving voltage for a motor used to control the beam direction of an antenna, a reference signal for measuring the rotation state of the motor, and an RF signal for mobile communication and transmitting the matched signal via a feeder cable; and an antenna controller for receiving the matched signal from the remote controller via the feeder cable, dividing the matched signal into the reference signal, the motor driving voltage, and the RF signal, driving the motor using the motor driving voltage, and outputting a variation in the reference signal depending on the rotation state of the motor to the remote controller via the feeder cable, wherein the remote controller comprises a frequency generator for generating the reference signal to measure the rotation state of the motor that controls the beam direction and tilting angel of the antenna; a motor voltage generator for generating the driving voltage required to drive the motor mounted to the antenna; a matcher for combining the output of the frequency generator with the output voltage of the motor voltage generator without interference and receiving the variation in the rotation state of the motor from the antenna controller; a bias T for combining the output of the matcher with the RF signal and outputting the combined signal to the antenna controller via the feeder cable; a signal detector for detecting the variation in the rotation state of the motor from the signal received from the matcher, converting the variation to a square wave signal, and outputting the square wave signal; and a controller for outputting a voltage and control signal for driving the motor and receiving a control result value from the signal detector, thereby continuously controlling the motor voltage generator and the frequency generator.