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Modeling a millimeter wave imaging system with a 2.5D BiCGS-FFT volume integral equation technique Host Publication: First European Conference on Antennas and Propagation Conference Authors: S. Van Den Bulcke, A. Franchois, L. Zhang and J. Stiens Publisher: IEEE Publication Year: 2008 Number of Pages: 5 ISBN: 978-92-9092-937-6
Abstract: The imaging performance of an active mm-wave imaging system can be studied using accurate numerical electromagnetic simulations. We present an exact forward solver to calculate the three-dimensional (3D) scattered fields of a two-dimensional (2D) inhomogeneous dielectric object which is illuminated with a given 3D time-harmonic incident field. Since the size of the scattering objects can be very large with respect to the wavelength, a 2.5D configuration is adopted. This reduces the computational cost while it maintains the capability of accurately studying the system performance. The 3D scattered fields are calculated by discretizing a contrast source integral equation with the Method of Moments. The resulting linear system is solved iteratively with a stabilized biconjugate gradient Fast Fourier Transform method.
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