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US08410856B2 Method and apparatus for canceling balun amplifier noise 有权
用于消除平衡 - 不平衡转换放大器噪声的方法和装置

Method and apparatus for canceling balun amplifier noise
Abstract:
The noise figure of a low noise amplifier (LNA) is reduced without sacrificing performance such as gain, IIP3, and wideband impedance matching. Embodiments include configuring a control module of the LNA to sum and scale an output from a current-sensing branch of the LNA and an output from a voltage sensing branch of the LNA into one or more summed and scaled outputs. The control module also feeds the one or more summed and scaled outputs back to at least one of the outputs of the branches of the LNA.
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