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本文介绍了一个分析和设计有耗增益补偿网络的方法。讨论了有耗网络的优点,介绍了用场效应晶体管和双极晶体管组成的二级放大器的实例来证明用低功率放大器设计的这个特殊网络的可行性。这些放大器分别在4—6千兆赫频率范围内获得15.4±0.5分贝的增益,最大噪声系数为2.5分贝。在1—2千兆赫频率范围内增益16.5±1.2分贝和最大输入驻波比为1.78。
This article describes a method for analyzing and designing a gain-compensated network. The advantages of a lossy network are discussed. An example of a two-stage amplifier consisting of a field-effect transistor and a bipolar transistor is presented to demonstrate the feasibility of this particular network designed with a low-power amplifier. These amplifiers achieve gains of 15.4 ± 0.5 dB at frequencies in the 4-6 GHz range with a maximum noise figure of 2.5 dB. The gain is 16.5 ± 1.2 dB at a frequency range of 1-2 GHz and the maximum input standing wave ratio is 1.78.