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An asymptotic high-frequency analysis of the radiation by a source on a perfectly conducting convex cylinder with an impedance surface patch [antennas]

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2 Author(s)
Ersoy, L. ; Ford Aerosp. & Commun. Corp., Palo Alto, CA, USA ; Pathak, P.H.

A high-frequency approximation is presented for the fields radiated by a magnetic line or line dipole source which is located on an impedance surface patch that partly covers an electrically large, perfectly conducting convex cylinder. Relatively simple asymptotic approximations are developed for the currents induced on the impedance surface by the line sources, and the radiation patterns are calculated by incorporating these surface currents into the radiation integral. The latter integral exists only over the patch region as it uses a perfectly conducting cylinder Green's function which is expressed in terms of a uniform geometrical diffraction (UTD) solution. Numerical results are presented and shown to compare very well with other independent calculations and measurements

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Antennas and Propagation, IEEE Transactions on  (Volume:36 ,  Issue: 10 )