当前位置: X-MOL 学术IET Sci. Meas. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Hybrid method for transient responses of transmission line in an apertured enclosure based on FETD method and transmission line equations
IET Science, Measurement & Technology ( IF 1.4 ) Pub Date : 2020-11-17 , DOI: 10.1049/iet-smt.2020.0043
Yanfei Gong , Luhang Jiang

A hybrid method combining the finite-element time-domain (FETD) method and transmission line (TL) equations (FETD-TL) is presented for evaluating the transient responses of a lossy TL in an apertured rectangular enclosure excited by electromagnetic pulses. First, the electric fields in the enclosure without the TL are calculated based on the Bethe's small holes theory and the mirror procedure. Then, the enclosure's electric fields are introduced into the second-order TL equation for current as the equivalent distributed sources. The transient currents induced on the TL are obtained by solving the second-order TL equation for current based on the FETD method with a single iteration variable. Finally, the transient voltages induced on the TL are computed by discretising the first-order TL equation. Compared with the method based on finite-difference time-domain (FDTD) method and TL (FDTD-TL) via several examples, the proposed hybrid method is proved to be correct and effective, which possesses much higher convenience and efficiency than FDTD-TL method in dealing with TL model terminated by complex lumped parametric networks.

中文翻译:

基于FETD方法和传输线方程的带孔外壳传输线瞬态响应的混合方法

提出了一种结合有限元时域(FETD)方法和传输线(TL)方程(FETD-TL)的混合方法,用于评估电磁脉冲激发的带孔矩形外壳中有损TL的瞬态响应。首先,根据贝特(Bethe)的小孔理论和镜像程序,计算不含TL的外壳中的电场。然后,将外壳的电场引入电流的二阶TL方程中,作为等效的分布式电源。通过基于具有单个迭代变量的FETD方法求解电流的二阶TL方程,可以获得在TL上感应的瞬态电流。最后,通过离散一阶TL方程来计算TL上感应的瞬态电压。
更新日期:2020-11-21
down
wechat
bug