Abstract
This paper presents an algorithm for analysis of the dielectric radomes. In this method, the radome is discretized by a regular grid with rooftop basic functions. The Volume Integral Equation (VIE) for 3D dielectric object is transformed to linear system by Galerkin’s testing formulation. Furthermore, the linear system is presented by Toeplitz matrix which can be solved by the Conjugate Gradient algorithm combined with Fast Fourier Transform (CG-FFT) iteratively. Also, the algorithm requires less computational complexity and memory. This paper simulates the mono-static Radar Cross Section of dielectric radome by the CG-FFT, which was validated against commercial software FEKO.
Highlights
Radome is a significance component in modern communication system
The linear system is presented by Toeplitz matrix which can be solved by the Conjugate Gradient algorithm combined with Fast Fourier Transform (CG-FFT) iteratively
We present an algorithm called CG-FFT for the simulation of dielectric radome, which applies Fast Fourier Transform combined with Conjugate Gradient algorithm
Summary
Radome is a significance component in modern communication system. Commonly, radome consists of dielectric materials [1] [2] [3] [4]. Computational Electromagnetics (CEM) is a method for electromagnetic analysis of the radome. For the simulation of radome, FEM and FDTD usually consume a lot of memory because of its discretization of whole region including the volume which is vacuum [5]. We present an algorithm called CG-FFT for the simulation of dielectric radome, which applies Fast Fourier Transform combined with Conjugate Gradient algorithm. It requires less computational complexity if solved iteratively. CG-FFT is a feasible method for the simulation of dielectric radome
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