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Published on: September 26, 2014
RCS Estimation of Singly Curved Dielectric Shell Structure with PMCHWT Method and Experimental Verification
Hyeong-Rae Im1, Woobin Kim1, Yeong-Hoon Noh1
1Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Korea.
Abstract:
In this paper, a numerical algorithm for the electromagnetic scattering analysis of singly curved dielectric structures, which can be applied to a canopy of fighter aircraft, is presented with experimental verification. At first, the Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) method is used as a MoM-based solution for the electromagnetic scattering of a dielectric material. Its formulation was generated with the EFIE formulation in a multi-region condition. The PMCHWT algorithm is implemented with C++ code, and the accuracy is verified by calculating the bistatic RCS of some canonical structures with conductive or dielectric materials. RCS measurement under quasi-anechoic condition is presented with its procedure and calibration method. The monostatic RCS results of a specially modeled singly curved dielectric structures are obtained analytically with the PMCHWT, as well as experimentally, revealing excellent agreement.
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