空天预警研究学报2025，Vol.39Issue(4)：294-298,303,6.DOI:10.3969/j.issn.2097-180X.2025.04.013
一种用于sub-GHz频段的低噪声低功耗射频前端电路设计
A design of low-noise and low-power RF front-end circuit for sub-GHz frequency band
郭维锋 1刘劭薇 1倪屹1
作者信息
- 1. 江南大学集成电路学院,江苏 无锡 214122
- 折叠
摘要
Abstract
In order to meet the demands of military application scenarios for wireless communication devices with high anti-interference performance and low power consumption,a low-noise and low-power front-end circuit for wireless receivers in the sub-GHz frequency band is designed.The first stage of the circuit utilizes noise can-cellation techniques and cross coupling structure to suppress thermal noise and calibrate differential current imbal-ance.The second stage applies current reuse technology to the dual balanced active mixers,forming a folded struc-ture of mixer as a whole to ensure that the circuit can operate at low power supply voltage.The simulation results show that at the target receiving frequency of 433.92 MHz,the designed circuit achieves a peak gain of 56.67 dB,a noise figure of 4.33 dB,and a static power consumption of 1.86 mW.关键词
接收机前端/抗干扰/低功耗/低噪声放大器/混频器Key words
receiver front-end/anti-interference/low-power consumption/low-noise amplifier/mixer分类
信息技术与安全科学引用本文复制引用
郭维锋,刘劭薇,倪屹..一种用于sub-GHz频段的低噪声低功耗射频前端电路设计[J].空天预警研究学报,2025,39(4):294-298,303,6.
