Fengzhi Dai, Haokang Wen
Pages 127-131
Abstract
This paper studies and designs a gain controllable radio frequency amplifier system. As the hardware core of the whole system, the variable gain amplifier realizes the data function of the amplifier combined with the single chip microcomputer. After adjusting the gain of RF amplifier, the input signal can be amplified or attenuated, and the ideal output signal can be obtained. Experimental results show that the gain controllable radio frequency amplifier system designed in this paper can achieve better control effects to amplify some signals. Theoretically, in real life, this amplifier has the advantage of being able to meet higher indicators, stable performance, and certain practicality.
Keywords: radio frequency amplifier, gain controllable, single chip microcomp