论文部分内容阅读
本文主要讨论地面站用三信道体制微波接收机本振系统.文中讨论了本振系统的组成与电平估算;对本振倍频链方案进行了分析,由此得到了一种较合理的、切实可行的倍频链方案;根据本振系统频谱纯度的要求,分析了频率综合器应达到的频谱纯度;讨论了微波集成倍频器的原理及设计方法;简单介绍了本振倍频链的联调技术,并给出了实际倍频链的调试结果;最后分析了环境温度对本振源稳定性的影响.
This article mainly discusses the three-channel local oscillator system for microwave receivers used in terrestrial stations.In this paper, we discuss the composition and level estimation of the local oscillator system, analyze the frequency-multiplied chain scheme, and obtain a reasonable and practical According to the requirement of the spectral purity of the local oscillator system, the spectral purity that the frequency synthesizer should reach is analyzed. The principle and design method of the microwave integrated frequency multiplier are discussed. Tune the technology, and gives the debug results of the actual frequency multiplier chain; Finally, the influence of ambient temperature on the stability of the local oscillator is analyzed.