许多实际的放大器将多个放大器级联起来，以获得较高的电压增益。
Many practical amplifiers chain together a series of analog amplifier stages to obtain a high overall voltage gain.
这就要求电压的总增益达到109，因此就需要很多放大器级联起来。
This requires an overall voltage gain of 109, so a number of voltage gain stages will be required.
提出一种新的双管组态共射-共基级联高频谐振e类放大器，介绍了其电路构成、工作状态、特点和电路的工作原理，最后还给出了实验结果和数据。
In this paper a new type of cascode HF resonant Eclass power amplifier using double triode is presented. The construction, character, working state and theorem of this circuit are also described.
本文也对CMOS低噪声放大器进行了分析，将传统共源共栅结构看作二级放大器级联形式，并由此引入级间匹配网络。
In this paper, the traditional cascode structure of CMOS LNA is considered as a two-stage amplifier and inter-stage matching network is introduced accordingly.
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。
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.
研究了新型的三段级联泵浦优配的掺铒光纤放大器的优化光路结构，得到高增益，低噪声，大输出功率的掺铒光纤放大器；
We also experimentally demonstrate a novel three-stage erbium-doped fiber amplifier with high gain, low noise figure, and high output power.
为了提高单个量子阱半导体光放大器的可调光子延迟，我们进一步探讨了多个光放大器的串行级联。
To enhance the tunable photonic delay of a single QW SOA, we explore a serial cascade of multiple amplifiers.
在此基础上，通过分析整个级联型低噪声放大器的密勒效应对优化设计的影响，进一步提出了对共栅级MOSFET的沟道宽度优化的必要性。
Based on this, the article draws a conclusion that the optimizing channel width of common-source MOSFET is necessary by analyzing Miller effect of LNA.
当进一步增加拉曼放大器的抽运功率，出现了前向级联的多阶受激布里渊散射现象，拉曼放大器的增益下降，被放大的信号功率转换为受激布里渊散射，噪声变大。
The forward cascaded multiple stimulated Brillouin emerged when the pump power is increased further, and the amplified signal power is translated into SBS with stronger noise when the gain decreased.
文章详细分析了共源共栅级联型低噪声放大器的优化设计方法。
An optimal design method of Cascode LNA is presented in detail.
文章详细分析了共源共栅级联型低噪声放大器的优化设计方法。
An optimal design method of Cascode LNA is presented in detail.
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