具有和不具有空气间隙的矩形微带天线的谐振和辐射

具有和不具有空气间隙的矩形微带天线的谐振和辐射 RESONANCE AND RADIATION OF A RECTAGULAR MICROSTRIP ANTENNA WITH OR WITHONT AN AIR GAP 范治波 Fan Zhibo 1 first-author 黄景熙 Huang Jingxi 1 武汉大学空间物理系 武汉大学空间物理系 Department of Space Physics, Wuhan University Department of Space Physics, Wuhan University 本文利用付里叶变换对具有和不具有空气间隙的矩形微带天线进行了严格的混合模分析,为推导付里叶变换域中的并矢格林函数,进行了新的矩阵研究,利用伽略金法推导出了谐振频率的特征方程。用数值求解该特征方程,以求得谐振频率。辐射方向图可从矩形贴片上的电流分布和格林函数求得,无须进行逆付里叶变换。本文最后给出了谐振频率和辐射方向图的数值结果,部分结果与文献中所得的实验结果相比较,其一致性很好。 A rigorous hybrid mode analysis of a rectangular microstripantenna with or without an air gap is presented by using the Fourier transforms. A new matrix approach to the derivation of the dyadic Green function in the Fourier transform domain is described. The characteristic equation for the resonant frequencies is derived by using Galerkin method. The resonant frequencies are obtained by numerically solving the characteristic equation The radiation patterns are easily obtained from the current distribution on the rectangular patch and Green’s function without carrying out inverse Fourier transforms The numerical results for the resonant frequencies and radiation patterns are presented. Some results are compared with the available experimental data and the agreement is found to be quite good. 微带天线 混合模分析 付里叶变换 microstrip antenna hybrid mode analysis Fourier transform 1991-02-01 2021-04-01 2