# 参考文献

## 器件介绍
[混频器](https://baike.baidu.com/item/%E6%B7%B7%E9%A2%91%E5%99%A8)  
[带通滤波器](https://baike.baidu.com/item/%E5%B8%A6%E9%80%9A%E6%BB%A4%E6%B3%A2%E5%99%A8)  
[功率放大器](https://baike.baidu.com/item/%E5%8A%9F%E7%8E%87%E6%94%BE%E5%A4%A7%E5%99%A8)  

## 器件备选