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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Capturing asymmetrical spectral regrowth in RF systems using a MultiSlice behavioral model and enhanced envelop transient analysis
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Capturing asymmetrical spectral regrowth in RF systems using a MultiSlice behavioral model and enhanced envelop transient analysis

机译:使用MultiSlice行为模型和增强的包络瞬态分析来捕获RF系统中的非对称频谱再生

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摘要

Nonlinear distortion in RF and microwave systems results in spectral regrowth of digitally modulated signals. The distortion above and below the main channel can be at different levels and this is attributed to baseband effects. This article presents a new multislice behavioral-model architecture that captures this asymmetry and can be implemented in a variety of circuit simulators, including SPICE, harmonic balance (HB), envelope transient (ET), and system simulators. The work is experimentally validated using an HBT power amplifier at 2.5 GHz driven by a WCDMA signal. The model is used with envelope transient circuit simulation which is enhanced to accommodate an arbitrary baseband transfer function. (C) 2006 Wiley Periodicals, Inc.
机译:RF和微波系统中的非线性失真会导致数字调制信号的频谱再生长。主通道上方和下方的失真可能处于不同级别,这归因于基带效应。本文提出了一种新的多层行为模型架构,该架构捕获了这种不对称性,并且可以在各种电路仿真器中实现,包括SPICE,谐波平衡(HB),包络瞬变(ET)和系统仿真器。使用WCDMA信号驱动的2.5 GHz HBT功率放大器对这项工作进行了实验验证。该模型与包络瞬态电路仿真一起使用,该仿真得到增强以适应任意基带传递函数。 (C)2006年Wiley Periodicals,Inc.

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