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Low-Noise Amplifier (LNA) Matching Techniques for Optimizing Noise Figures

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: An RF amplifier is an active network that increases the amplitude of weak signals, thereby allowing further processing by the receiver. Receiver amplification is distributed between RF and IF stages throughout the system, and an ideal amplifier increases the desired signal amplitude without adding distortion or noise. Unfortunately, amplifiers are known to add noise and distortion to the desired signal. In a receiver chain, the first amplifier after the antenna contributes most to the system noise figure. Adding gain in front of a noisy network reduces the noise contribution from that network. ……
标签:LNAnoisecurrentI2S
Low-Noise Amplifier (LNA) Matching Techniques for Optimizing Noise Figures
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