Abstract
In earlier work, we have given constructive methods to compute the surface currents on a conformal antenna which is required to radiate a maximal amount of energy into a predetermined sector of the far field. More recently, the authors have used asymptotic methods to compute approximate optimal surface currents in the time harmonic two-dimensional electromagnetic case (the Helmholtz equation with impedance boundary condition), for the case of high frequency.
In the present work, we extend these asymptotic results to the full three-dimensional time-harmonic electromagnetic case. We obtain a representation of the suboptimal current which explicitly shows the dependence on the total curvature, k x of the radiating structure at each point x.
Effort sponsored by the Air Force Office of Scientific Research, Air Force Materiel Command, USAF, under grant number F9620-96-1-0039. The U.S. Governnment is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation thereon.
Effort partially supported by funds from the University of North Carolina, Charlotte.
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© 1997 Springer Science+Business Media New York
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Angell, T.S., Kleinman, R.E., Vainberg, B. (1997). Asymptotic Approximations for Optimal Conformal Antennas. In: Baum, C.E., Carin, L., Stone, A.P. (eds) Ultra-Wideband, Short-Pulse Electromagnetics 3. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-6896-1_21
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DOI: https://doi.org/10.1007/978-1-4757-6896-1_21
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