Based on the microwave communication, this paper presents the principles and the design of a K-band low noisereceiver front-end.
本文以微波通信为研究背景，给出了一种K波段低噪声接收系统前端的原理和设计方法。
2
"And hand you the phone if the call is for you, to not interrupt or make noise when you are talking on the phone (this will take many months of instruction), and to not bang down the receiver."
在你谈电话时不要打断或制造噪音(这会耗费很多时间去教导的)；并且不要“啪”一声重重地挂电话。
3
The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.