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SIMULATION TECHNIQUE FOR ACLR OF A CLASS-S POWER AMPLIFIER WITH A DELTA-SIGMA MODULATOR

机译:带有Δ-SIGMA调制器的S类功率放大器的ACLR仿真技术

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摘要

A simulation technique for an adjacent channel leakage ratio (ACLR) of a class-S power amplifier (PA) with a delta-sigma modulator is proposed. This technique is based on three basic points. The first is a proper baseband signal, which must provide a fairly better ACLR than the target value of a PA as well as a tolerable total amount of time that can be handled by a transient circuit simulation. The second point is a carrier frequency adjustment for the observations free from spectrum leakage distortion due to a limited total amount of simulated time. The last is an ACLR calculation using only a steady-state output.
机译:提出了一种利用delta-sigma调制器的S类功率放大器(PA)的相邻信道泄漏比(ACLR)的仿真技术。该技术基于三个基本点。第一个是适当的基带信号,它必须提供比PA目标值更好的ACLR以及可通过瞬态电路仿真处理的可容忍的总时间。第二点是针对观测的载波频率调整,不会由于有限的模拟时间总量而导致频谱泄漏失真。最后是仅使用稳态输出的ACLR计算。

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