Full-wave scattering from a grooved cylinder-tipped conducting wedge

Anastasis C. Polycarpou; Marios A. Christou

doi:10.1109/TAP.2011.2152345

Full-wave scattering from a grooved cylinder-tipped conducting wedge

Anastasis C. Polycarpou, Marios A. Christou

Research output: Contribution to journal › Article › peer-review

Abstract

The problem of full-wave electromagnetic scattering from a cylinder-tipped conducting wedge with either a sectoral or annular groove is formulated using the mode-matching technique. The mode expansion of the sector involves ratios of Bessel functions with large order as the order is inversely proportional to the inner angle of the sector. An asymptotic expansion of Bessel functions with large orders is introduced in order to overcome the numerical difficulty involved using a regular series expansion. Numerical results indicate good agreement with data obtained using the finite element method (FEM).

Original language	English
Article number	5765467
Pages (from-to)	2732-2735
Number of pages	4
Journal	IEEE Transactions on Antennas and Propagation
Volume	59
Issue number	7
DOIs	https://doi.org/10.1109/TAP.2011.2152345
Publication status	Published - Jul 2011

Keywords

Conducting grooved wedge
electromagnetic scattering
mode expansion
mode-matching technique

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10.1109/TAP.2011.2152345

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abstract = "The problem of full-wave electromagnetic scattering from a cylinder-tipped conducting wedge with either a sectoral or annular groove is formulated using the mode-matching technique. The mode expansion of the sector involves ratios of Bessel functions with large order as the order is inversely proportional to the inner angle of the sector. An asymptotic expansion of Bessel functions with large orders is introduced in order to overcome the numerical difficulty involved using a regular series expansion. Numerical results indicate good agreement with data obtained using the finite element method (FEM).",

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Full-wave scattering from a grooved cylinder-tipped conducting wedge

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