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High-frequency scattering by a conducting circular cylinder coated with a lossy dielectric of nonuniform thickness

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2 Author(s)
Gokhun Tanyer, S. ; Dept. of Electr. & Electron. Eng., Baskent Univ., Ankara, Turkey ; Olsen, R.G.

A closed-form expression for the field produced by a plane wave incident on an infinitely long conducting cylinder, coated with a lossy dielectric of nonuniform thickness, is obtained using perturbation theory. This approximate series solution is later evaluated asymptotically for electrically large cylinder sizes. The scattered fields are interpreted using geometric optics and creeping waves. The fields are calculated using the exact series, the approximate perturbation series, and the high-frequency asymptotic solutions, and compared for different angles of incidence

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Antennas and Propagation, IEEE Transactions on  (Volume:45 ,  Issue: 4 )