论文部分内容阅读
通过采用时域模技术 ,FDTD Diakoptics算法可以用来有效准确地分析复杂的微波集成电路 .根据电路的几何结构选定时域模函数 ,以该时域模函数为基础 ,建立微波电路的多模电路模型 ,使用全波时域分析方法求解多模电路对应于各个时域模的时域响应 ,使用傅里叶变换技术计算时域模函数的冲击响应 ,从而进一步得到多端口网络模型 ,使用FDTD Diakoptics算法对微波电路进行分析 .讨论了全波时域方法求解时域模函数时域响应时激励函数的选取原则 ,讨论了用傅里叶反变换求解时域模函数冲击响应时频带宽度的选取问题 .最后本方法被应用于波导滤波器的分析设计 .
FDTD Diakoptics algorithm can be used to effectively and accurately analyze complex microwave ICs by using the time-domain modeling technique.According to the geometry of the circuit, the time-domain modulus function is selected and based on the time-domain modulus function, the multi-mode Circuit model, the full-wave time-domain analysis method is used to solve the time-domain response of the multi-mode circuit corresponding to each time-domain mode and the Fourier transform is used to calculate the impulse response of the time-domain mode function to further obtain the multi-port network model. FDTD Diakoptics algorithm is used to analyze the microwave circuit.The selection principle of the excitation function when the full-wave time-domain method is used to solve the time-domain response of the time-domain modal is discussed.The selection of the bandwidth of the excitation when the time-domain modal impulse response is solved by the inverse Fourier transform Finally, this method is applied to the design of waveguide filters.