| 摘要 |
PURPOSE: A device for controlling an RF signal gain is provided to attenuate a gain of an RF signal by using a 6-bit digital attenuator only, and to transmit a serial-type control signal to each LPA(Linear Power Amplifier) through a single port by an RF signal controlling block, thereby monitoring and controlling states of the LPAs. CONSTITUTION: An RF signal controller(100) is connected by a single port, and transmits a serial-type control signal through the single port. When a digital attenuation value is inputted, an RF transmission signal processor(200) attenuates a gain value of a corresponding RF signal. When the digital attenuation value is inputted, an RF receiving signal processor(300) attenuates a gain value of a corresponding RF signal. Many LPA processors(400) are connected to the RF signal controller(100) through the single port. When the serial-type control signal is inputted from the RF signal controller(100), the LPA processors(400) control LPAs by corresponding to the serial-type control signal. |
