文章基本信息

标题：Analysis of equivalent antenna based on FDTD method
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作者：Yun-xing Yang ; Hui-chang Zhao ; Cui Di 等
期刊名称：Defence Technology
印刷版ISSN：2214-9147
出版年度：2014
卷号：10
期号：3
页码：1-4
DOI：10.1016/j.dt.2014.07.005
出版社：Elsevier B.V.
摘要：An equivalent microstrip antenna used in radio proximity fuse is presented. The design of this antenna is based on multilayer multi-permittivity dielectric substrate which is analyzed by finite difference time domain (FDTD) method. Equivalent iterative formula is modified in the condition of cylindrical coordinate system. The mixed substrate which contains two kinds of media (one of them is air)takes the place of original single substrate. The results of equivalent antenna simulation show that the resonant frequency of equivalent antenna is similar to that of the original antenna. The validity of analysis can be validated by means of antenna resonant frequency formula. Two antennas have same radiation pattern and similar gain. This method can be used to reduce the weight of antenna, which is significant to the design of missile-borne antenna.
关键词：Equivalent microstrip antenna ; FDTD ; Multi-permittivity dielectric