›› 2010, Vol. 23 ›› Issue (3): 56-.

• 论文 • 上一篇    下一篇

GPS接收机低噪声放大器设计

石超,孙保华,魏云飞,朱铖   

  1. (西安电子科技大学 电子工程学院,陕西 西安710071)
  • 出版日期:2010-03-15 发布日期:2010-05-12
  • 通讯作者: 石超(1982-),男,硕士研究生。研究方向:射频电路及天线设计。
  • 作者简介:石超(1982-),男,硕士研究生。研究方向:射频电路及天线设计。

Design of a GPS receiver Low Noise Amplifier

Shi Chao,Sun Baohua,Wei Yunfei,Zhu Cheng   

  1. (School of Electronic Engineering,Xidian University,Xian 710071,China)
  • Online:2010-03-15 Published:2010-05-12

摘要:

选用噪声系数较低的Agilent E-PHEMT ATF-54143晶体管,采用集总元件网络匹配方法,设计实现了一种GPS接收机前端低噪声放大器。通过运用Agilent公司的微波软件ADS进行设计、仿真和优化,在PTFE基板上制作实现了该放大器。实测结果显示,在1 520~1 600 MHz工作频带内,噪声系数<05 dB,小信号增益>16 dB,输入驻波比<2,输出驻波比<15。

关键词: 低噪声放大器, 噪声系数, 驻波比, 增益

Abstract:

A GPS receiver low noise amplifier is presented.Using the chip of Agilent EPHEMT ATF54143,the proposed low noise amplifier is built based on the method of lumped component matching network.With the optimized parameters simulated by Agilent ADS,the prototype of the proposed amplifier is constructed on a PTFE and measured.Over the whole operating frequency range (1 520-1 600 MHz),the measured results explore favorable operation with a low noise figure of less than 05 dB,gain of higher than 16 dB,good input VSWR of less than 2 and output VSWR of less than 15.It shows good agreement with the simulation results.

Key words: low noise amplifier;noise figure;VSWR;gain

中图分类号: 

  • TN722