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本文提出了一种利用负反馈对放大器实现180°宽带移相的方案.在对这种移相器特性进行了理论分析的基础上,进行了实验论证.结果表明,这种移相器方案不仅在70MHz是可行的,而且也可应用于140MHz或更高的频率范围.
This paper presents a scheme of using the negative feedback to realize the 180 ° wideband phase shift of the amplifier.Analyzed the characteristics of this phase shifter theoretically and experimentally.The results show that this phase shifter scheme not only At 70MHz is feasible, but also can be applied to 140MHz or higher frequency range.