OP1dB Deviation (dB) 14.0 13.5 12.5 PAE (%) PAE (%) Power Gain (dB) Pout (dBm) VSWR @ 13GHz Pout (dBm) PG Deviation (dB) VSWR Angle (o) RIMD7U VSWR @ 13GHz VSWR Angle (o) VSWR Angle (o) PAEOP1dB -PAEOP1dB@50Ω 48.25dBc RIMD5U Main Tone RIMD7L RIMD5L RIMD3L 27.5dBc Coupled Tone RIMD3U PG Deviation (dB) Pout (dBm) PG Deviation (dB) VSWR @ 13GHz PAEOP1dB -PAEOP1dB@50Ω Large Signal Performance PAEOP1dB -PAEOP1dB@50Ω OP1dB Deviation (dB) S12 S22 VSWR 4:1 OP1dB Deviation (dB) Power Gain (dB) S11 VSWR 3:1 PAE (%) Power Gain (dB) VSWR 2:1 CW @ 12.25GHz S21

📋 论文概要

该论文研究了一款工作于12.5-14.5GHz的功率放大器(PA)，重点分析了其在2:1、3:1和4:1三种电压驻波比(VSWR)条件下的性能退化情况，包括功率增益、PAE和线性度等指标。通过实验测量和RIMD分析，该PA在负载失配下仍能保持较好的性能，适用于射频收发机子系统。

💡 主要创新点

• 系统性地评估了PA在多种VSWR角度和比值下的大信号性能，给出了PAEavg、Pavg等关键参数的详细变化规律。
• 引入了RIMD（可能是负载失配下的互调失真）指标来量化PA在失配条件下的线性度退化。

🏷 关键词

📄 原文摘要

VSWR Angle (o) VSWR Angle (o) performance at 12.25GHz (top), and across the frequency (bottom right); and the RIMD Figure 20.4.4: Large-signal performance of the PA across the 12.5-to-14.5GHz frequency range under three VSWR conditions: 2:1 (left), 3:1 (center), and 4:1 (right). conceptual measurement setup and performance across frequency (bottom left). 50Ω, Pavg= 11.03dBm, PAEavg= 20.25% VSWR 3:1 225°, Pavg= 11.688dBm, PAEavg= 18.593% -26.5dB -28.3dB VSWR 3:1 90°, Pavg= 10.55dBm, PAEavg= 22.97% -27.15dB PG Deviation (dB) VSWR Angle (°) PAEavg (%) VSWR Angle (°) 64-QAM, Fc= 14.5GHz VSWR 4:1, 270°, Pavg= 10.24dBm, PAEavg= 11.62% -28.1dB -31.55dB PG deviation from 50Ω at fixed EVMrms VSWR Angle (°) PG deviation from 50Ω at fixed EVMrms VSWR Angle (°) PG Deviation (dB) Pavg (dBm) VSWR Angle (°) Pavg (dBm) -30.49dB VSWR Angle (°) PAEavg (%) 13.5 GHz VSWR Angle (°) 14.5 GHz 64-QAM, Fc= 13.5GHz

👥 作者与机构

Figure 20.4.3: Measured PA S-parameters, stability factors, and large-signal, VSWR Angle (o)