毫米波多像元固态阵列接收机系统方案及关键技术

摘要

The basic concept and principle of multi-pixel array receivers are introduced in this paper. A G-band multi-pixel array receiver for space application is proposed, of which the structure and performance are presented, and the key technology of the receiver is discussed. Using integrated design method, a 2 × 2 multi-pixel array receiver operating at 183GHz is designed based on solid state nonlinear devices. The input local oscillator is Ku band signal, sideband separating is adopted in this array receiver. The whole receiver is integrated and compact, which can be widely used in many kinds of passive millimeter-wave imaging system.%文章介绍了毫米波多像元阵列接收机原理、技术优势及发展现状。针对空间应用，提出了一种基于固态器件的G波段毫米波多像元阵列接收机结构，并介绍了其关键技术。以固态器件为核心，通过本振变频一体化集成设计思想，设计实现一种中心频率183GHz的2×2像元固态阵列接收机。本振输入为Ku波段信号，接收机采用直接边带分离混频方式。整个接收机模块小型紧凑，可靠性高，可用于各种空间毫米波、亚毫米波无源探测系统中。