具有2°相移变化的12GHz 22db增益控制SiGe双极VGA

ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC) Pub Date : 2015-11-02 DOI:10.1109/ESSCIRC.2015.7313827

F. Padovan, M. Tiebout, A. Neviani, A. Bevilacqua

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引用次数: 2

摘要

一个12GHz VGA显示了增益控制从-9dB到13dB在db中的线性方式。当增益改变时，整个10至14.4 GHz带宽的相移变化最小为≤2°，这是由于补偿电路降低了输入输出相移对增益变化的灵敏度。VGA原型机采用SiGe双极技术，噪声系数为5.1 dB, IIP3为-3dBm，功耗为83mW。

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A 12GHz 22dB-gain-control SiGe bipolar VGA with 2° phase shift variation

A 12GHz VGA is presented that shows a gain control from -9dB to 13dB in a linear-in-dB fashion. As the gain is changed, the phase shift over the entire 10 to 14.4 GHz bandwidth varies as little as ≤2° due to a compensation circuitry that reduces the input-output phase shift sensitivity to gain variations. The VGA prototypes, implemented in a SiGe bipolar technology, show a noise figure of 5.1 dB, an IIP3 of -3dBm, and a power consumption of 83mW.

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ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC)

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