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Comparison of Technologies for APT and ET Applications

机译:适用于APT和ET应用的技术比较

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Average power tracking (APT) and envelope tracking (ET) power amplifiers require high efficiency across a range of supply voltages. The performance of these amplifiers is usually characterized by a so-called "waterfall curve" [1-3]. While circuit design choices can certainly be a factor in this roll-off of PAE with decreasing supply voltage, it is also necessary to evaluate device technologies to understand the trade-offs and opportunities they present for these applications. For technology development, it is advantageous to see if "simpler" measurements, such as RF-Knee[4] correlate to these waterfall measurements since they are easier to collect. We demonstrate the correlation of simpler measurements to the waterfall measurements and also compare the performance of different HBT material designs and other technologies.
机译:平均功率跟踪(APT)和包络跟踪(ET)功率放大器在一系列电源电压上需要高效率。这些放大器的性能通常具有所谓的“瀑布曲线”[1-3]。虽然电路设计选择肯定是PAE的这种滚动的因素,但由于电源电压降低,也需要评估设备技术以了解他们为这些应用提供的权衡和机会。对于技术开发,有利的是,看看“更简单”的测量值,例如RF膝盖[4]与这些瀑布测量相关,因为它们更容易收集。我们展示了更简单测量到瀑布测量的相关性,并比较不同的HBT材料设计和其他技术的性能。

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