一种变增益低噪声放大器的新设计方法

2000 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium Digest of Papers (Cat. No.00CH37096) Pub Date : 2000-06-10 DOI:10.1109/RFIC.2000.854434

S. Pennisi, S. Scaccianoce, G. Palmisano

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引用次数: 15

摘要

提出了一种可变增益低噪声放大器的设计方法，该方法的输入和输出信号可以在具有不同特征的电路支路之间切换。它可以安排为高线性性能和/或不同的频率形状。此外，它还可以满足多频段应用的匹配条件。作为设计实例，设计了一个采用20 GHz双极技术的900 MHz三增益低噪声放大器。该电路的最大增益和噪声系数分别为26 dB和2.1 dB，并提供精确的输入和输出匹配。

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A new design approach for variable-gain low noise amplifiers

A new approach to the design of variable-gain low noise amplifiers is presented in which input and output signals can be switched among circuit branches with different features. It can be arranged for high linearity performance and/or different frequency shapes. Moreover, it allows matching conditions for multi-band applications to be met. As a design example, a 900 MHz three-gain level low noise amplifier was designed in a 20 GHz bipolar technology. The circuit exhibits a maximum gain and a noise figure of 26 dB and 2.1 dB, respectively and provides accurate input and output matching.

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2000 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium Digest of Papers (Cat. No.00CH37096)

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