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Low-Noise Parametric Resonant Amplifier

机译:低噪声参量谐振放大器

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摘要

We propose a resonant parametric amplifier with an enhanced noise performance by exploiting the noise-squeezing effect. Noise squeezing occurs through the phase-sensitive amplification process and suppresses one of the two quadrature components of the input noise. When the input signal is only in the direction of the nonsuppressed quadrature component, squeezing can lower that noise figure by almost 3 dB. The resonant structure of the proposed amplifier is inspired by a Fabry–Perot laser amplifier to achieve the squeezing effect using a low number of $LC$ elements. We design and simulate the proposed noise-squeezing parametric amplifier in a conventional 65-nm CMOS process. A minimum noise-squeezing factor of $-$0.35 dB is achieved with a signal gain of 26 dB for one quadrature component of a 10-GHz narrow-band signal.
机译:我们提出了一种通过利用噪声压缩效应来增强噪声性能的谐振参数放大器。噪声压缩是通过相敏放大过程发生的,并且抑制了输入噪声的两个正交分量之一。当输入信号仅在未抑制正交分量的方向上时,压缩可以使该噪声系数降低近3 dB。拟议的放大器的谐振结构受到Fabry-Perot激光放大器的启发,使用少量的$ LC $元件即可实现压缩效果。我们在传统的65 nm CMOS工艺中设计并仿真了拟议的噪声压缩参数放大器。对于10 GHz窄带信号的一个正交分量,信号增益为26 dB时,可实现$-$ 0.35 dB的最小噪声压缩因子。

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