一种用于多波段发射机的0.9-3.0 GHz全集成可调谐CMOS功率放大器

2009 IEEE Asian Solid-State Circuits Conference Pub Date : 2009-12-22 DOI:10.1109/ASSCC.2009.5357277

D. Imanishi, K. Okada, A. Matsuzawa

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引用次数: 21

摘要

提出了一种0.9 GHz ~ 3.0 GHz可调谐功率放大器。本文提出了一种利用电阻反馈和由电感和可调谐电容阵列组成的并联谐振的输出阻抗调谐方法。所提出的多频段PA可以在很宽的频率范围内将输出阻抗调整到50 Ω，因此可以消除PA后的外部隔离器。该放大器采用0.18 μm CMOS工艺，电源电压为3.3 V。在整个频率范围内，放大器的输出回波损耗S22小于−10 dB，功率增益大于16 dB，输出1-dB压缩点大于17 dBm, 1-dB压缩点的功率附加效率(PAE)大于10%。

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A 0.9–3.0 GHz fully integrated tunable CMOS power amplifier for multi-band transmitters

A tunable power amplifier (PA) from 0.9 GHz to 3.0 GHz is presented. This paper proposes an output impedance tuning method by using resistive feedback and a parallel resonance consisting of an inductor and a tunable capacitor array. The proposed multi-band PA can adjust the output impedance to 50 Ω over a wide frequency range, so external isolators following PAs can be eliminated. The PA is implemented by using a 0.18 μm CMOS process, and the supply voltage is 3.3 V. Over all of the frequency range, the PA realizes output return loss S22 of smaller than −10 dB, power gain of larger than 16 dB, output 1-dB compression point of larger than 17 dBm, and power added efficiency (PAE) at 1-dB compression point of larger than 10%.

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来源期刊

2009 IEEE Asian Solid-State Circuits Conference

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