电大尺寸导体上背腔式微带天线散射的混合法

Hybrid analysis of scattering by microstrip antennas residing in a cavity on an electrically large body

提出了一种新的计算电大尺寸导体上微带天线散射的混合法.该方法通过场等效原理实现高低频方法耦合;通过引入弹跳射线或迭代物理光学法,可以计算带有凹形结构的电大尺寸导体目标上背腔式微带天线的散射,适用性更广.计算实例证明了该方法的准确性和高效性.

A new hybrid technique for calculating the scattering of an electrically large conducting body by microstrip antennas on its surface is presented. The high-frequency and the low-frequency methods are combined via the equivalence theorem. This technique overcomes the shortcomings of the existing methods and can apply to concave large conducting bodies by introducing SBR or IPO. Some numerical results are obtained, demonstrating the accuracy, efficiency and capability of the technique.