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An Efficient Hybrid Technique of EFIE and DSIE and its Application to Wire Antennas Enclosed in Thin Dielectric Radomes
Wenbo Wang 1 #,Jinping Xu 1 *,Liu Xiaochun 2,Sun Shining 2
1.State Key Laboratory of Millimeter Waves, Southeast University, Nanjing
2.The Aeronautical Science Key Lab for High Performance Electromagnetic Windows, Jinan, 250023, China
*Correspondence author
#Submitted by
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Funding: 航空科学基金资助(No.No.20111869011), 高等学校博士学科点专项科研基金资助(No.No20090092110008), 东南大学毫米波国家重点实验室自主创新课题资助(No.No.Z201101)
Opened online:27 June 2014
Accepted by: none
Citation: Wenbo Wang,Jinping Xu,Liu Xiaochun.An Efficient Hybrid Technique of EFIE and DSIE and its Application to Wire Antennas Enclosed in Thin Dielectric Radomes[OL]. [27 June 2014] http://en.paper.edu.cn/en_releasepaper/content/4600748
 
 
In this paper, a hybrid technique of EFIE and DSIE is proposed for analyzing the radiation of antennas in the presence of very thin dielectric radomes, which take the interaction between the antenna and the thin radome into account. The antenna is modeled by the conventional electric field integral equation (EFIE), and a D-field surface integral equation (DSIE) is employed for fast analysis of scattering by the very thin radomes with high dielectric constant. The DSIE is derived from the volume integral equation (VIE) inside the dielectric region by neglecting the normal component of the electric flux density when the dielectric constant is high. Modeling the entire geometry with triangular meshes, the coupled IE can be easily solved by the method of moment (MoM) using the popular RWG function as basis and test functions. Fast algorithm-multilayer fast multipole algorithm (MLFMA) is applied to enhance the efficiency and cut down the computation complexity. The radiation pattern and the input impedance of wire antennas enclosed in thin dielectric radomes are calculated. The numerical results show the validity and the effectiveness of the proposed method.
Keywords:thin dielectric radome, wire antenna, radiation, integral equation, method of moment
 
 
 

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