摘要
为了灵活、可靠地实现100 W发射机功率自动控制,设计了一种基于微控制器的自动功率控制系统,该系统使用微控制器芯片C8051F020实时控制数字衰减芯片AT65-0107的衰减值来改变输入信号的大小,并通过检测反馈手段来确定衰减值,从而实现了发射机功率的自动控制;通过该系统在100 W发射机产品中的实际应用,证明了该系统能有效、迅速地自动控制发射机的功率,使发射机的功率控制在所需功率的±0.5 dB范围内,满足实际产品中的发射机功率控制要求,该自动功率控制设计也可以应用到其他发射机或电台中。
To realize the automatic power control of 100W transmitter reliably and flexibly,this paper introduces an automatic power control design based on microcontroller,the system uses C8051F020 to control in real time the value of digital attenuator AT65 0107 and change the RF amplitude,and utilizes the detect and feedback to determine attenuation value,then realize the automatic power control of transmitter.The system application in 100W transmitter proves the system can implement automatic power control of transmitter within ± 0.5dB range of required power efficiently and rapidly and meet the power control requirements of transmitter,and this design can be applied in other transmitter or radio.
出处
《无线电通信技术》
2013年第4期89-92,共4页
Radio Communications Technology
