5G小基站射频前端研究和设计

Research and design of 5G small base station RF front-end

针对5G小基站项目研制需求,基于5G通信系统的理论研究和3GPP射频性能指标要求,通过ADS(Advanced Design System)仿真软件设计开发了一款3.5 GHz频段的射频前端。根据射频前端整个开发流程,对功率放大器、低噪声放大器、射频开关、滤波器等关键射频组件性能参数进行深入的调研和评估,并提出相应的方案原理图设计、方案系统链路仿真以及板端测试指标的优化等思路,最终通过板端性能指标的实际测试,各项指标数据均满足技术要求。

Aiming at the development requirements of 5G small base station project,based on the theoretical research of 5G communication system and the requirements of 3GPP RF performance indicators,a 3.5 GHz RF front-end is designed and developed by Advanced Design System(ADS)simulation software.According to the whole development process of RF front-end,this paper conducts in-depth research and evaluation on the performance parameters of key RF components such as power amplifier,low noise amplifier,RF switch and filter,and puts forward the corresponding schematic design,system link simulation and optimization of board and end test indicators.Finally,the actual test of board and end performance indicators is passed.All the index data meet the technical requirements.