Summary
URSI Commission B 2013 International Symposium on Electromagnetic Theory EMTS 2013
2013
Session Number:21PM2F
Session:
Number:21PM2F-01
A Heterogeneous Domain Decomposition Method for the Full Wave Analysis of Complex Airborne Antenna Systems
Zhen Peng, Kheng-Hwee Lim, Jin-Fa Lee,
pp.318-321
Publication Date:2013/5/20
Online ISSN:2188-5079
DOI:10.34385/proc.30.21PM2F-01
Summary:
A heterogeneous domain decomposition method is presented for efficiently and effectively analyzing the antenna and radome mounted on a realistic airborne platform. The proposed non-conformal domain decomposition method follows a hierarchical domain partitioning strategy. The entire computational domain is decomposed into non-overlapping sub-regions. A surface integral equation domain decomposition method is applied for the full wave solution of the homogeneous sub-regions, such as airborne platform. A non-conformal finite element domain decomposition method is proposed for solving sub-regions involving significant repetitions: such as large finite antenna arrays, frequency selective surfaces, and metamaterials. To further improve the convergence in the DDM iterations, an optimal 2nd order transmission condition is introduced to enforce field continuities across domain interfaces. A complex airborne antenna system-level simulation is conducted to illustrate the potential benefits offered by the proposed method.