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。
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.
出处
《电讯技术》
北大核心
2004年第3期120-123,共4页
Telecommunication Engineering
关键词
微波转发器
接收机
混频器
噪声系数
组合干扰
Microwave transponder
Receiver
Frequency mixer
Noise figure
Combination interference
