name: PAE
full_form: Power Added Efficiency
context: on simulations of a GaN and a CMOS PA, both designed for operation around 30 GHz. Similar to the FR2 approach where the PA models at 45 GHz and 70 GHz FR2 proxy frequencies used the same nonlinear characteristics but with the output power scaled as -20 dB/decade while PAE scaled as -6 dB/decade, the same approach has been used for 7 â 24 GHz example frequencies. The results for relation between output power and ACLR as well as ACLR vs PAE for example frequencies of 10 GHz, 15 GHz and 20 GHz are presented in figure 5.4.3-3 and figure 5.4.3-4 respectively, but now with PAE scaling as -5 dB/decade as supported by the larger updated data set used in this work. Figure 5.4.3-3: ACLR versus output power at 10, 15, and 20 GHz example frequencies, and 30 GHz based on 30 GHz PA model for reference Figure 5.4.3-4: PAE versus output power at 10, 15, and 20 GHz example frequencies, and 30 GHz based on 30 GHz PA model for reference. Constant PAE for CMOS and GaN PA, respectively, also shown As
description: Power Added Efficiency (PAE) is a metric used to evaluate the efficiency of power amplifiers in telecommunications systems. It measures the ratio of the output power to the input power, taking into account the power consumed by the amplifier itself.
explanation: The context provided from 3GPP TS 38.820 highlights PAE as a key performance indicator for power amplifiers, with simulations and results presented in figures to illustrate its relationship with output power and ACLR (Adjacent Channel Leakage Ratio). This classification is based on the role of PAE as a measurement of amplifier efficiency.
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