S波段宽带16通道射频接收模块设计

The Design of S-band Wideband 16-channel RF Receiver Module

本文设计了一种工作在S波段的16通道射频接收模块,对其设计原理进行分析,并根据系统动态范围等指标要求合理设计接收通道各级电路增益及优化射频前端各个关键器件指标。噪声系数、增益、杂散抑制、通道隔离度等各项指标良好,满足设计指标要求。本文设计的模块中,混频放大SIP采用多层高温共烧陶瓷埋线工艺,金属化陶瓷外壳及植球阵列(BGA)封装,其内部各通道间采用金属屏蔽分腔设计,将四路S波段混频放大通道集成设计在一个SIP中。该接收模块集成度较高,相比同频段具有相同功能的接收模块,该接收模块尺寸减小较多,整个16通道射频接收模块尺寸为255mm×95mm,重280g。极大的降低了接收组件在雷达系统中的重量占比。

In this paper,an S-band 16-channel RF receiver module was introduced including the method of design principle and implementation.According to the dynamic range and other indicators of the radar system,the gain of each level circuit of the receiving channel was reasonably allocated,and the components of the RF front section were optimized.The result showed that the noise factor,gain,spurious suppression and channel isolation of the module could meet the design requirements.The mixer amplifier SIP was integrated by multi-layer HTCC substrate and BGA sealing,each channel within SIP was designed with metal enclosure and 4 S band mixer amplifier channels were integrated into one SIP.The proposed design achieved high RF performance and reliability for the RF receiver module.Compared with other receiver modules operating in the same frequency band,the RF receiver module achieves a compact size of 255mm×95mm and a small weight of 280g,which greatly reduces the weight proportion of the receiver module for radar systems.