摘要
以K60单片机为控制核心,通过两级PE4302衰减器的可调衰减来控制三级SSB2089放大器增益的方法,实现增益可控射频放大器。首先对电路中的放大模块、衰减模块、K60单片机控制模块、显示模块、电源模块等五个部分的硬件电路设计进行阐述,然后用软件实现放大电路的增益可控及增益显示。电路调试结果显示本系统能实现增益4d B步进可调、且误差范围在2d B以内,具有频带宽、精度高的特点。
In this paper,the K60 microcontroller as the control core,through the two stage PE4302 attenuator attenuation to control the three stage SSB2089 amplifier gain method,achieve gain controllable RF amplifier.Firstly,the circuit in the amplifier module,module,K60 MCU control module,display module,power supply module five parts of the hardware circuit design in this paper for the attenuation of the and then used the software to achieve amplification circuit of controllable gain and gain shows.
出处
《工业控制计算机》
2016年第9期126-127,共2页
Industrial Control Computer
关键词
高频电子
射频宽带放大器
衰减度可调
增益可调
K60
high frequency electronic,radio frequency broadband amplifier,adjustable attenuation,adjutable gain,K60
