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宽频带放大器在仪表与通信系统中有着极广泛的应用,其信号可以是模拟或者数字形式的.这种放大器要求从零频或者接近于零频的极低频率开始的较大频带内提供均匀的放大.在设计一个满足需要特性的放大器时,应将有源器件的高频特性与无源网路元件结合考虑.
Broadband amplifiers are used in a wide range of instrumentation and communications systems and their signals can be in analog or digital form. Such amplifiers require that a uniform frequency be provided over a large frequency band starting at a very low frequency of zero or close to zero When designing an amplifier that meets the required characteristics, consider the high frequency characteristics of active devices in combination with passive network components.