AN INTEGRAL EQUATION-FAST FOURIER TRANSFORM-BASED HYBRID METHOD FOR ANALYSIS OF WIRE-SURFACE CONFIGURATIONS ON ELECTRICALLY LARGE PLATFORMS

作者：An Xiang^*; Lue Zhi Qing

来源：Microwave and Optical Technology Letters, 2009, 51(2): 486-490.

DOI：10.1002/mop.24079

• wire-surface junction
• electromagnetic scattering and radiation
• hybrid method
• IE-FFT

This article presents an efficient hybrid method with the IE-FFT algorithm for solving scattering and radiation problems of wire antennas mounted oil electrically large platforms. To model arbitrary metallic structures, including wire antennas and both open and closed surfaces, in this method, the electric field integral equation (EFIE) and the magnetic field integral equation (MFIE) are applied separately to geometrically distinct regions of an object. The EFIE is used to represent wire antennas and open surfaces, while the MFIE is employed for closed surfaces to improve the convergence rate. The resulting matrix system is solved by an iterative algorithm, and the IE-FFT method is adopted to reduce the memory requirements and computational complexity to O(N(1.5)) and O(N(1.5)logN), respectively, for three-dimensional perfectly electric conductor problems. Some numerical examples are provided to demonstrate the accuracy and efficiency of the method.

• 出版日期2009-2
• 单位西安电子科技大学