nf -增益-线性折衷的放大器输入匹配

2020 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Pub Date : 2020-01-01 DOI:10.1109/PAWR46754.2020.9035994

William Sear, Adam Der, T. Barton

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引用次数: 0

摘要

在本文中，我们研究了放大器输入匹配对噪声系数、增益和线性设计权衡的影响，目的是开发一种能够作为PA或LNA工作的单放大器解决方案。我们评估了输入噪声匹配的放大器与输入增益匹配的相同放大器的大信号线性性能，以及对效率和噪声系数的影响。原型放大器设计为3ghz，在3db增益压缩下实现42.86 dBm的连续波输出功率和67%的PAE。与增益匹配的放大器相比，在噪声匹配的输入下，放大器的增益降低了2 dB, PAE降低了7.7个百分点，但在33.5 dBm输出功率下，在1 mhz间隔双音信号激励下，IMD3提高了3 dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Amplifier Input Matching for NF-Gain-Linearity Compromise

In this paper we investigate the effect of amplifier input matching on the noise figure, gain, and linearity design tradeoff, with the goal of developing a single-amplifier solution able to operate as either a PA or LNA. We evaluate the large-signal linearity performance of an amplifier with a noise-matched input compared to an identical amplifier with gain-matched input, and the effects on efficiency and noise figure. The prototype amplifier is designed at 3 GHz and realizes 42.86 dBm CW output power and 67% PAE at 3 dB gain compression. With a noise-matched input the amplifier realizes a 2 dB reduction in gain and 7.7 percentage point reduction in PAE compared to the gain-matched amplifier, but a 3 dB improvement in IMD3 at 33.5 dBm output power under a 1-MHz spaced two-tone signal excitation.

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来源期刊

2020 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR)

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