From simple Power Amplifiers and LNAs to complete Transceivers and Systems, testing is accomplished through a universal test Head interface.
从简单的功率放大器和低噪声放大器到完整的收发器与系统，通过一个通用测试头接口就可以完成测试。
On the basis of the noise linearity of low noise amplifier(LNA), the variable load temperature method is introduced to measure noise properties of cryogenic LNAs.
在低噪声放大器噪声线性的基础上，介绍了负载温度可变法，用于测量低温低噪声放大器的噪声。
In chapter three, the designation and application of the low noise amplifiers (LNA) are optimized, and two different LNAs circuits and their cascade connection are both studied.
第三章为低噪声放大器优化设计与应用，设计和实现了两种不同低噪放电路并且对其级联方式进行了研究。
For the requirement of high gain and low noise figure (NF) of the receiver RF destination, two LNAs most be cascaded, which is determined by each noise calculation of the two different LNAs.
接收射频前端的高增益和低噪声系数要求两级低噪放级联使用，通过计算低噪放的噪声估量确定了连接方式。
For the requirement of high gain and low noise figure (NF) of the receiver RF destination, two LNAs most be cascaded, which is determined by each noise calculation of the two different LNAs.
接收射频前端的高增益和低噪声系数要求两级低噪放级联使用，通过计算低噪放的噪声估量确定了连接方式。
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