【作者】 颜慧； 闫丽萍； 赵翔； 黄卡玛；

【Author】 Yan Hui;Yan Liping;Zhao Xiang;Huang Kama;School of Electronics and Information Engineering,Sichuan University;

【机构】 四川大学电子信息学院；

【摘要】 本文提出了一种连接有非线性部件的场线耦合问题分析方法。利用传统场线耦合理论分析电磁波辐射下传输线线上及其终端负载的响应,采用基于频域黑箱模型的非线性大信号S函数建模方法对非线性部件进行表征,将二者联立求解,可以解决连接有非线性部件的场线耦合问题。基于该建模方法的计算结果与实验测量结果吻合较好。这种建模方法突破了已有文献中非线性部件只能作为传输线负载的局限性,为电子系统的系统级电磁兼容建模与分析奠定了基础。更多还原

【Abstract】 A modeling method for analysis of electromagnetic field coupling to microstrip line connected with nonlinear components is proposed in this paper.The traditional field-to-transmission line theory is used to get the response of a microstrip line radiated by electromagnetic wave,while nonlinear large-signal scattering function which is based on the black box model in frequency-domain is used to model nonlinear devices or circuits.Then the electromagnetic field coupling to microstrip line connected with nonlinear components is analyzed by combining these two models together.The predicted results using the combined models are in agreement with measurement ones.The proposed method break through the limitation of the existing method in which the nonlinear components are usually treated as the terminal loads of a transmission line,rather than as a part of electronic circuits or system.更多还原