ABSTRACT This paper presents an efficient time-domain analysis of RF/microwave nonlinear circuits in the presence of the incident uniform plane wave. In this paper, a set of differential equations, including the linear equations due to incident field coupling and nonlinear state equations for the active part of the circuit, are derived and simultaneously solved using the finite difference time domain (FDTD) method. Moreover, a numerical approach with global convergence is used to guarantee the stability of the proposed algorithm. Furthermore, for validation of the proposed method, the theoretical and experimental studies using a measurement setup, including a transverse electromagnetic (TEM) cell, are carried out for performance analysis of a low noise amplifier illuminated by the high-power incident plane wave. By comparison with measurement results, satisfactory accuracy is obtained, which indicates the ability of the proposed method in dealing with the radiated susceptibility of RF/microwave circuits, involving the electromagnetic interference (EMI) problem.

中文翻译：

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电磁波耦合到射频/微波非线性电路的时域分析和实验研究

摘要 本文提出了在入射均匀平面波存在的情况下对射频/微波非线性电路进行有效的时域分析。在本文中，使用有限差分时域（FDTD）方法导出并同时求解了一组微分方程，包括由于入射场耦合引起的线性方程和电路有源部分的非线性状态方程。此外，使用具有全局收敛性的数值方法来保证所提出算法的稳定性。此外，为了验证所提出的方法，使用包括横向电磁 (TEM) 单元在内的测量装置进行了理论和实验研究，以对高功率入射平面波照射的低噪声放大器进行性能分析。