| 摘要: |
| 介绍了接收信道前端在微波转发设备中的重要性，给出了信道前端设计的框图，介绍了各部分电路在接收信道中起的作用，讨论了接收机中混频器／本振、放大器性能和系统噪声系数设计、组合干扰产生等方面对接收机性能的影响，同时强调了设计中应该注意和兼顾考虑的地方。 |
| 关键词: 微波转发器 接收机 混频器 噪声系数 组合干扰 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| Some Consideration on the Design of Receiver Front End Channel |
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| Abstract: |
| The importance of the front end channel of receiver in microwave transponder is discussed. The block diagram of front end channel is also given. The performance of each circuit is explained and the effect of dynamic range, combination interference, noise figure, signal gain on the performance of receiver are analyzed. Some aspects should be considered in the design are also provided. |
| Key words: Microwave transponder,Receiver,Frequency mixer,Noise figure,Combination interference |
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