一种基于超短波接收机的变频AGC设计

2016 IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2016-06-01 DOI:10.1109/ICMMT.2016.7762491

Lei Tang, Qiulin Huang, Xiao-wei Shi

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引用次数: 0

摘要

由于频谱资源变得越来越拥挤，对接收机的要求也越来越高。高动态、高灵敏度和高线性度是接收机频谱资源转换的一大挑战。本文提出了一种基于超外差接收机变频的变频自动增益控制(AGC)。AGC电路是接收机模块中的关键控制电路之一，其作用是提高接收机的动态范围。本文分析了AGC电路的工作原理和AGC模块的组成。并选择合适的元器件进行AGC设计。最后，对AGC电路进行了分析和测试。

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A design of variable frequency AGC based on ultrashort wave receiver

Since the frequency spectrum resource becomes much more crowded, and the requirements of the receiver are also getting higher and higher. It is a challenge for converting frequency spectrum resources that the receiver requirements are high dynamic, high sensitivity and high linearity. In this paper, a frequency conversion AGC(automatic gain control) based on frequency conversion of super heterodyne receiver is proposed. The AGC circuit is one of the key control circuits in the receiver module, and its function is to improve the dynamic range of the receiver. This paper analyzes the working principle of AGC circuit and the composition of the AGC module. And select the appropriate components to design the AGC. Finally, the AGC circuit is analyzed and tested.

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2016 IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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