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Adaptive Envelope Shaping for Low and Medium Power Amplifiers with Dynamic Supply

机译:具有动态电源的中低功率放大器的自适应包络整形

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This letter presents an adaptive envelope shaping (AES) method to linearize low and medium power amplifiers (PAs) with dynamic supply. This straightforward linearization solution results very useful for small cell or handset transmitters, where reducing power consumption and computational complexity of the digital part is crucial. With the AES method, there is no need of an a priori characterization of the PA to shape the supply voltage signal targeting maximum linearity. Excellent linearization results are obtained when the PA presents good AM-PM linearity, otherwise, additional phase distortion linearization has to be included to meet the ACLR specifications.
机译:这封信提出了一种自适应包络整形(AES)方法,可通过动态电源线性化低功率和中功率放大器(PA)。这种简单的线性化解决方案结果对于小型蜂窝或手持式发射机非常有用,因为在小型蜂窝或手持发射机中,降低功耗和数字部分的计算复杂度至关重要。使用AES方法,无需先验表征PA即可形成以最大线性度为目标的电源电压信号。当PA表现出良好的AM-PM线性时,可获得出色的线性化结果,否则,必须包括附加的相位失真线性化以满足ACLR规范。

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