Synthesis of array near to PEC platform by using UV/MoM-PO hybrid method and GA approach

An optimization process based on genetic algorithm (GA) and UV accelerating method of moment/physical optical hybrid method (UV/MoM-PO) is presented in this paper for the synthesis of the array antennas located near to electric-large scale PEC body. In this work, the geometric size and position of the array are invariable and the amplitude and phase distribution of the excited voltage for the array are considered as the optimized parameters. The UV/MoM-PO method is adopted as the forward computation algorithm to obtain the pattern of the array accounting for the effects of the platform, while the GA is used as the optimization method. Finally, two examples are given to demonstrate the optimization process.

[1]  R. Kouyoumjian The geometrical theory of diffraction and its application , 1975 .

[2]  U. Jakobus,et al.  Improvement of the PO-MoM hybrid method by accounting for effects of perfectly conducting wedges , 1995 .

[3]  Allen W. Glisson,et al.  Electromagnetic Scattering by Surface of Arbitrary Shape. , 1980 .

[4]  Fernando Obelleiro,et al.  Improvement of the hybrid moment method–physical optics method through a novel evaluation of the physical optics operator , 2001 .

[5]  Peng Xu,et al.  Correction to “Wave scattering with the UV multilevel partitioning method: 1. Two-dimensional problem of perfect electric conductor surface scattering”: CORRECTION , 2004 .

[6]  V. Rahmat-Samii,et al.  Genetic algorithms in engineering electromagnetics , 1997 .

[7]  Chang-Hong Liang,et al.  A simple iterative method for considering multibounce in PO region of MoM‐PO , 2004 .

[8]  Jian-Ming Jin,et al.  Fast and Efficient Algorithms in Computational Electromagnetics , 2001 .

[9]  Zhu Guo-qiang Analysis of array located near to electric large-scale platform based on UV/MoM-PO method , 2008 .

[10]  D. Wilton,et al.  Electromagnetic scattering by surfaces of arbitrary shape , 1980 .

[11]  Yahya Rahmat-Samii,et al.  Electromagnetic Optimization by Genetic Algorithms , 1999 .

[12]  Peng Xu,et al.  Wave scattering with the UV multilevel partitioning method: 1. Two‐dimensional problem of perfect electric conductor surface scattering , 2004 .

[13]  P. L. Werner,et al.  Radiation pattern synthesis for arrays of conformal antennas mounted on arbitrarily-shaped three-dimensional platforms using genetic algorithms , 2003 .

[14]  Peng Xu,et al.  Wave scattering with UV multilevel partitioning method: 2. Three‐dimensional problem of nonpenetrable surface scattering , 2004 .

[15]  Eric Michielssen,et al.  Genetic algorithm optimization applied to electromagnetics: a review , 1997 .

[16]  Tom Milligan Synthesis of Onboard Array Antennas Including Interaction with the Mounting Platform and Mutual Coupling Effects , 2001 .

[17]  U. Jakobus,et al.  Improved PO-MM hybrid formulation for scattering from three-dimensional perfectly conducting bodies of arbitrary shape , 1995 .

[18]  Hai Tao Chen,et al.  Using UV technique to accelerate the MM‐PO method for three‐dimensional radiation and scattering problem , 2006 .