文件名称：Multiband RF Circuits and Techniques for Wireless Transmitters.PDF
文件大小：11.2MB
文件格式：PDF
更新时间：2023-07-09 14:16:42
多频 射频电路 无线发射
An amplifier receives a signal from an input source and provides a scaled version of the signal to an output device such as an antenna or to another amplifier stage. In small-signal amplifiers, the main factors are usually linearity, gain, and efficiency. For small-signal analysis, the amount of power handling capacity and power efficiency are of little concern. Large-signal devices such as power amplifiers (PAs), on the other hand, primarily provide sufficient power to an output load to drive another device, typically a few watts to tens of watts.