Simulation Design of a Low-Noise Amplifier for 3.1-10.6 GHz Ultra-Wideband Wireless Receivers
An ultra-wideband (UWB) hybrid low noise amplifier (LNA) is presented. The topology is a two-stage amplifier including a bandpass Chebychev LC filter and a source-follower buffer. The bandpass filter works as input matching network to give an acceptable reflection coefficient and a small amount dc power.Gain flatness is achieved mainly by the two transistors with matching network between stages. And the slight source negative feedback inductors is designed to facilitate input impedance and noise matching. The proposed UWB amplifier is implemented with gallium arsenide (GaAs) field effect transistors and a Rogers substrate (RO4003). The LNA gives 18.2 dB gain flatting, a minimum noise figure (NF) of 1.2 dB, input and output reflection coefficient better than -12 dB within 2 dB from 3.1 to 10.6 GHz.
Zhong Qishui Bao jingfu He songbai
School of Electronic Engineering, University of Electronic Science and Technology,Chengdu 610054, China
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
151-153
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）