Experimental and Theoretical Validation for the Incremental Theory of Diffraction
| Autor: | Harun Taha Hayvaci, Matteo Albani, Danilo Erricolo, Stefano Mihai Canta |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Diffraction
Wave propagation geometrical theory of diffraction Mathematical analysis Uniform theory of diffraction Physics::Optics Geometry Wedge (geometry) oblate spheroidal functions incremental theory of diffraction (ITD) measurements Exact solutions in general relativity Boundary value problem Electrical and Electronic Engineering Perfect conductor Wave function Mathematics |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 56:2563-2571 |
| ISSN: | 0018-926X |
| DOI: | 10.1109/tap.2008.927566 |
| Popis: | Experimental and theoretical approaches to verify the validity of the incremental theory of diffraction (ITD) are considered. After providing a simple recipe for the application of the ITD, three geometries are examined for its validation. First, the ITD formulation of the diffraction from a perfect electric conductor (PEC) straight wedge is compared with the uniform theory of diffraction (UTD) and with measurement results. Second, the ITD formulation of the diffraction from a PEC disc is compared with measurement results and with the exact solution of a boundary value problem involving oblate spheroidal functions. Third, the ITD formulation of the diffraction from a hole in a PEC plane is compared with the exact solution of a boundary value problem involving oblate spheroidal functions. In particular, this is the first time that ITD results for diffraction from the disc and hole in a plane geometries are validated using exact solutions computed at a caustic. In all cases examined, very good agreement is found. |
| Databáze: | OpenAIRE |
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