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超外差直接混频雷达接收机前中放大电路研究

更新时间:2020-05-14 04:20:41 大小:886K 上传用户:六3无线电查看TA发布的资源 标签:放大电路 下载积分:3分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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目前雷达型空空导弹直波接收机和回波接收机多采用超外差式接收方式,而其前置中频放大电路的性能对整个接收机的灵敏度、增益和选频特性等指标都具有至关重要的影响作用。通过分析总结了前置中频放大电路的选择依据,给出了一种共基放大电路原理图。从静态工作点、等效模型的绘制、增益影响因素和选频特性等方面系统介绍了该电路分析方法,其经验和分析思路对工程技术人员具有重要的现实指导意义。

At present the direct wave receiver and echo receiver of radar air-to-air missile adopts the superheterodyne receive mode, the performance of the pre-if amplifier circuit has significant effect in terms of the sensitivity of the re-ceiver, gain and frequency characteristics. The choice basis of pre-if amplifier circuit is summarized through the anal-ysis. The common base amplifier circuit principle diagram is given. The analysis method is introduced systematically from the static work point, equivalent model draw, gain affect factor and frequency-response characteristic. Its experi-ence and the analysis method have important practical significance for engineers and technicians.

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超外差直接混频雷达接收机前中放大电路研究.pdf 886K

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