Modeling the Time-Harmonic Electromagnetic Emissions of Microwave Circuits
Modeling the Time-Harmonic Electromagnetic Emissions of Microwave Circuits
复制标题
微波电路时谐波电磁发射建模
DOI：
10.1109/temc.2011.2168822
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发表时间：
2012
影响因子：
2.1
通讯作者：
A. Louis
中科院分区：
文献类型：
--
作者：
A. Ramanujan;Z. Riah;A. Louis
本文提出了一种简单实用的方法来再现和预测微波电路辐射电磁场的时域特性。将以前建立的频域模型扩展到预测大频段电磁辐射，从而预测时谐场。采用基于傅立叶级数的方法将频域近场测量数据转换为时域数据，用于数字应用。开发了一种先进的提取方法，实现了单步提取大波段模型参数。在高频传输线和混合耦合器上对建模方法进行了验证。模拟结果与CST Microwave Studio中的时域模拟结果进行了比较。
This paper presents a simple and practical method to reproduce and predict the time-domain behavior of the radiated electromagnetic fields of microwave circuits. The previously developed frequency-domain model is extended toward predicting the large-band electromagnetic radiations and thereby the time-harmonic fields. Fourier-series-based method is used in order to transform the frequency-domain near-field measurement data into time domain for digital applications. A cutting-edge extraction procedure is developed so as to extract the large-band model parameters in a single step. The modeling method is validated on a high frequency transmission line and on a hybrid coupler. The modeled results are compared with time-domain simulations performed in CST Microwave Studio.