可重构匹配网络对射频宽带功率放大器性能的增强

2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14) Pub Date : 2014-05-01 DOI:10.1109/SSD.2014.6808866

J. Perez-Cisneros, P. G. Ducar, P. L. Carro, A. Valdovinos, J. D. Mingo

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引用次数: 1

摘要

在射频前端设计中，效率与线性度的权衡是一个非常具有挑战性的方面。提出了一种利用可重构匹配网络(RMN)优化宽带功率放大器线性度和效率性能的方法。长期演进(LTE)波形建模为多正弦激励用来模拟一个通用的PA，假设天线是完全匹配的。通过选择合适的RMN状态，在提高线性度的同时，可大大提高功率附加效率(PAE)。此外，在选择线性最优RMN状态时，相邻通道功率比(ACPR)得到改善，同时效率得到提高。该结构同时提高了线性度和效率。

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Performance enhancement of RF wideband power amplifier by reconfigurable matching networks

The efficiency-linearity tradeoff is a very challenging aspect in the design of RF front-ends. An optimized process for both linearity and efficiency performance improvement using a reconfigurable matching network (RMN) for wideband power amplifiers (PAs) is presented. Long-term evolution (LTE) waveforms modeled as multisine excitations are used to simulate a general purpose PA, assuming that the antenna is perfectly matched. Power added efficiency (PAE) is strongly improved by selecting properly RMN state at the same time as linearity also increases. Furthermore, the adjacent channel power ratio (ACPR) is improved whilst obtaining efficiency enhancement when selecting the optima RMN state for linearity. Both linearity and efficiency are improved simultaneously with this architecture.

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来源期刊

2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)

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