Title | ||
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Frequency-Domain Uniform Asymptotic Solution For Scattered Field By A Coated Cylinder With A Thin Lossy Medium |
Abstract | ||
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A frequency-domain (FD) uniform asymptotic solution (FD-UAS) which is useful for engineering applications is newly derived for the two-dimensional scattered magnetic field by a coated conducting cylinder covered with a thin lossy medium. The FD-UAS is uniform in the sense that it remains valid within the transition region adjacent to the shadow boundary, and it smoothly connects a geometric optical ray (GO) solution and a geometrical theory of diffraction (GTD) solution exterior to the transition region, respectively. We assume that the thickness of a coating medium is thin as compared with one wavelength of a cylindrical wave radiated from a magnetic line source. This uniform asymptotic solution is represented by a combination of scattered field component solutions, namely, the GO solution composed of a direct GO (DGO) and a reflected GO, the extended uniform GTD (extended UTD) solution made up of a DGO and a pseudo surface diffracted ray (pseudo SD), the modified UTD solution representing SD series, and the GTD solution for a lowest order SD. The FD-UAS is valid for a source point and/or an observation point located either near the coating surface or in the far-zone. The effectiveness and usefulness of the FD-UAS presented here are confirmed by comparing with both the exact solution and the conventional UTD shadow region solution. |
Year | DOI | Venue |
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2016 | 10.1587/transele.E99.C.18 | IEICE TRANSACTIONS ON ELECTRONICS |
Keywords | Field | DocType |
frequency-domain uniform asymptotic solution, scattered field, coated cylinder, thin lossy medium | Frequency domain,Lossy compression,Cylinder,Optics,Electronic engineering,Engineering | Journal |
Volume | Issue | ISSN |
E99C | 1 | 1745-1353 |
Citations | PageRank | References |
1 | 0.40 | 4 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Keiji Goto | 1 | 3 | 0.87 |
Naokatsu Sumikawa | 2 | 3 | 0.87 |
Ryo Asai | 3 | 3 | 0.87 |
Taweedej Santikul | 4 | 3 | 0.87 |