Ka频段八波束接收组件的设计与实现

Design of a Ka band 8 beams receiver module

介绍了一种Ka频段八波束接收组件的设计方法和关键技术。为实现八波束及1.6 GHz瞬时带宽的要求,在接收组件中集成了实时延时芯片,并提出了射频组件三维垂直互联与射频信号交叉传输的方法,同时采用多芯片组装技术、多功能芯片技术等高密度集成方法实现组件装配。研制的接收组件具有高集成度,噪声系数等关键指标在10dB的数控衰减下小于3.5dB,较传统组件在尺寸、质量及波束数量上具有较大优势。

Design method and key technologies of a Ka band with high integration receiver module are given. In order to meet the requirement of more than 1.6 GHz instantaneous bandwidth in Ka band, true time-delay chip is integrated in the module. According to the requirement of 8 beams, a method of vertical interconnection and Radio Frequency(RF) cross technology is proposed, and the Multi-Functional Chip(MFC) technique and Multi-Chip Module(MCM) technique are also adopted to increase the integration level. Finally, a receiver module with 16 channels(8 beams) is developed successfully and NF of the module is less than 3.5 dB in the case of 10 dB attenuation. The receiver module features high integration level. It has more advantages on the size, weight and the number of beams than the conventional module.