一种基于磁流环的改进同轴线激励源仿真方法

By using the equivalent coaxial line excitation source model of the magnetic flux loop and combining it with RWG basis functions, the problem of simulation result deviation in RF device and antenna design caused by the virtual probe voltage source excitation method was solved, and efficient and accurate electromagnetic simulation was achieved.

CN122413879APending Publication Date: 2026-07-17HANGZHOU DIANZI UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU DIANZI UNIV
Filing Date
2026-06-22
Publication Date
2026-07-17

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Abstract

本发明涉及一种基于磁流环的改进同轴线激励源仿真方法，首先建立待仿真导体结构的电磁边界条件，然后构建同轴线激励源模型；将同轴线开口处的环形孔径等效为磁流环，并按照同轴线TEM主模的径向电场分布生成等效磁流密度及相应的激励场分布；再将该激励场分布投影到内导体或馈电连接区域的三角形网格与RWG基函数上，形成矩量法方程右端激励向量；最后求解电磁场积分方程，获得导体表面等效电流、端口导纳参数及散射参数。本发明能够在不手动建立完整同轴线实体的情况下，更准确地表征同轴馈电的孔径场分布、探针效应和高频相位变化，降低激励端电压不稳定对仿真结果的影响，提高射频器件、天线及芯片电磁兼容仿真的一致性和建模效率。
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