讲座题目：Rigorous Radar Cross Section Analysis of a Finite Parallel-Plate Waveguide with Material Loading （介质加载有限大平板波导的雷达散射截面分析）
主 持 人：颜志老师
Dr. Kobayashi is a professor of the Department of Electrical, Electronic, and Communication Engineering, Chuo University, Tokyo, Japan. Prof. Kobayashi is a Member of Science Council of Japan and a Fellow of The Electromagnetics Academy. His research area includes, developments of rigorous mathematical techniques as applied to electromagnetic wave problems, integral equations, boundary value problems, special functions, radar cross section, and scattering and diffraction. Prof. Kobayashi received several distinguished awards including, M. A. Khizhnyak Award (2016) for contribution to electromagnetic theory and V. G. Sologub Prize (1998) for contribution to development of analytical regularization methods.
The analysis of the electromagnetic scattering by open-ended metallic waveguide cavities is an important subject in the prediction and reduction of the radar cross section (RCS) of a target. This problem serves as a simple model of duct structures such as jet engine intakes of aircrafts and cracks occurring on surfaces of general complicated bodies. Some of the diffraction problems involving two- and three-dimensional cavities have been analyzed thus far based on high-frequency techniques and numerical methods. It appears, however, that the solutions due to these approaches are not uniformly valid for arbitrary dimensions of the cavity. Therefore it is desirable to overcome the drawbacks of the previous works to obtain solutions which are uniformly valid in arbitrary cavity dimensions. The Wiener-Hopf technique is known as a powerful, rigorous approach for analyzing scattering and diffraction problems involving canonical geometries. In this lecture, we shall consider a finite parallel-plate waveguide with four-layer material loading as a geometry that can form cavities, and analyze the plane wave diffraction rigorously using the Wiener-Hopf technique. Both E and H polarizations are considered.