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Gain controllable low noise amplifier with automatic linearity enhancement and method of doing same
Gain controllable low noise amplifier with automatic linearity enhancement and method of doing same
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机译:具有线性自动增强的增益可控的低噪声放大器及其制造方法
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摘要
A gain controllable low noise amplifier (LNA) (200) with automatic linearity enhancement utilizes an amplifier stage (203) for amplifying a radio frequency (RF) input signal and a dynamically controllable feedback loop amplifier stage (205) for providing negative feedback to the feedback amplifier. A bias controller (213) is coupled to the dynamically controllable feedback loop amplifier stage (203) for monitoring a receiver automatic gain control (AGC) system (211) and providing a dynamic bias to the feedback loop amplifier stage (205) to improve linearity to the LNA in the presence of strong on-channel and off-channel signal conditions.
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