一种新型输出匹配方法的宽带高效率j类功率放大器

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2018-12-01 DOI:10.1109/ISAPE.2018.8634146

Zhiwei Zhang, Guohua Liu, Hao Sun, Zhi-qun Cheng

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引用次数: 0

摘要

提出了一种设计宽带高效率j类功率放大器的新方法。采用一种新的简化的双端口网络输出阻抗计算方法，设计了宽带输出匹配网络。为了验证，采用Cree 10-W封装GaN HEMT器件实现了基于该方法的宽带高效j类功率放大器。测量结果表明，该放大器的漏极效率为64% ~ 68%，在1.2 ~ 2.6 GHz频段内输出功率在40 ~ 41.6 dBm之间，增益大于10 dB，整个频段的ACPR在- 27.5 ~ - 32.4 dBc之间。

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A Broadband High Efficiency Class-J Power Amplifier with a Novel Output Matching Method

This paper presents a new method to design broadband high efficiency Class-J power amplifiers (JPAs). The wideband output matching network (OMN) is designed with a new simplified output impedance calculation method by using a two-port network. For demonstration, a broadband high efficient Class-J power amplifier based on proposed method is implemented using Cree 10-W packaged GaN HEMT devices. Measurement results show that 64%-68% drain efficiency is achieved and between 40-41.6 dBm output power with more than 10 dB gain over the frequency band of 1.2-2.6 GHz, the proposed amplifier has an ACPR between - 27.5 and −32.4 dBc over the entire band.

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2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

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