Modeling of Spectral Regrowth Effects of Passive Intermodulation With Broadband Signal Excitation

0 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE microwave and wireless technology letters Pub Date : 2024-07-29 DOI:10.1109/LMWT.2024.3422493
Junyu Luo;Jinchun Gao;Weiling Zhuang;Ziren Wang
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引用次数: 0

Abstract

In this letter, a novel broadband passive intermodulation (PIM) model was developed to evaluate the spectral regrowth around PIM signals. This proposed model adopts the frequency division method to divide the PIM products and introduces the modified Gaussian distribution to fit the probability density function (pdf) of the PIM spectrum. Compared with the power division model, the proposed frequency division model can achieve accurate spectral regrowth estimation in a selected channel. Finally, an example of a coaxial connector was selected and a series of broadband PIM tests were conducted to verify the effectiveness of the model.
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宽带信号激励下无源互调的频谱再生效应建模
在这封信中,我们开发了一种新型宽带无源互调(PIM)模型,用于评估 PIM 信号周围的频谱再生。该模型采用分频方法划分 PIM 产物,并引入修正高斯分布来拟合 PIM 频谱的概率密度函数(pdf)。与功率划分模型相比,所提出的频率划分模型可以在选定信道中实现精确的频谱再生估计。最后,以同轴连接器为例,进行了一系列宽带 PIM 测试,以验证模型的有效性。
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