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EFFICIENT MULTI-OBJECTIVE OPTIMIZATION OF FREQUENCY SELECTIVE RADOME WITH NONUNIFORM WALL THICKNESS

By X. Ma and G. Wan

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Abstract:
An efficient optimization technique for frequency selective surface (FSS) radome with nonuniform wall thickness is proposed to improve the power transmission efficiency and the boresight error (BSE) of FSS radome simultaneously. The high-frequency method based on the approximate locally planar technique is used to evaluate the transmission performance of FSS radome. An efficient multi-dimensional adaptive sampling method combined with spectral domain method of moment (MoM) is employed to analyze transmission performance of FSS structure. The immune clone algorithm (ICA) is applied to the design of a FSS radome, in which the linear combination of the maximizing power transmission efficiency and the minimizing BSE is adopted as the affinity function, and the radome wall thickness is optimized. A design example for the three-dimensional tangent ogive radome with nonuniform thickness is given. The results show that the power transmission efficiency is improved significantly and the BSE of the optimal antenna-radome system is also reduced over the antenna scan volume.

Citation:
X. Ma and G. Wan, "Efficient Multi-Objective Optimization of Frequency Selective Radome with Nonuniform Wall Thickness," Progress In Electromagnetics Research M, Vol. 35, 39-48, 2014.
doi:10.2528/PIERM13122503

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