Two-stage Low Noise Amplifier for BD- II Receiver Application

摘要：

This paper presents two-stage Low Noise Amplifier (LNA) design for BD-Ⅱ (B3 mode) receiver. It presents circuit design and simulation of Low Noise Amplifier. This amplifier uses ATFS4143 low noise PHEMT device. To make the two-stage LNA stability at wideband, a T-shape resistor attenuation network is innovatively added to the output of the LNA, which hardly increase the noise figure as the last stage of circuit. It also makes the output well matching and increase the isolate with the following circuit From the simulation, the LNA keep stability at wideband, Gain achieved is 25dB with deviation less than ±0.2dB, 0.4 dB noise figure(NF) is achieved, the VSWR of input and output is less than 1.3 dB.

关键词： BD-Ⅱ receiver LNA attenuation network

作者: Zhihong Dai Yongzhong Hu Kunzhi Xu

作者单位: School of Electronic Engineering University of Electronic Science and Technology of China Chengdu ,China

会议类型: 国际会议

会议名称: 2012 5th Global Symposium on Millimeter-Waves(2012年第五届全球毫米波会议 GSMM 2012)

会议地点: 哈尔滨

会议语种:英文

页码: 303-306

在线出版日期: 2012-05-27（万方平台首次上网日期，不代表论文的发表时间）