摘要
应用非均匀网格时域有限差分法(NFDTD)对单个波导缝隙天线进行分析。首先介绍NFDTD,并分析其计算误差。然后用该方法对在三公分波导上开的纵向辐射缝隙进行分析研究,得到了缝隙的一些性质,如缝隙谐振长度关于缝偏移量的函数及S参数关于缝偏移量的函数。并与文献中的stegen实验结果进行了比较,结果吻合很好。
In this paper,the nonuniform finite-difference time-domain method （NFDTD） is used to analyze the waveguide-fed slot antenna, Firstly, the NFDTD is introduced and its numeric error is analyzed. A longitudinal slot in a broad wall X- brand waveguide is analyzed by using this method,characteristics of radiating slot,such as resonant length as a function of the offset and scattering parameters as a function of the offset is obtained. The computed result of the resonant length of the slot is compared with the stegen＇s measured data. The result coincides well with the measured data.
出处
《现代电子技术》
2005年第23期37-38,41,共3页
Modern Electronics Technique
