On the computation of Infeld’s function used in evaluating the admittance of prolate spheroidal dipole antennas

Autor:	T. Do-Nhat, Robert H. MacPhie
Rok vydání:	1996
Předmět:	Power series Physics Classical mechanics Admittance law Applied Mathematics Computation Prolate spheroid Dipole antenna Asymptotic expansion Series expansion Wave function law.invention
Zdroj:	Quarterly of Applied Mathematics. 54:721-725
ISSN:	1552-4485 0033-569X
DOI:	10.1090/qam/1417235
Popis:	The Infeld function expressed in terms of the outgoing prolate spheroidal radial wave function and its derivative, and employed in the expression of the input self-admittance of prolate spheroidal antennas, has accurately been calculated by using a newly developed asymptotic expression for large degree n n . This asymptotic power series has been derived by using a perturbation method with a perturbation parameter ϵ = 1 / ( λ 1 n − h 2 ) \epsilon = 1/\left ( {\lambda _{1n}} - {h^2} \right ) , where λ 1 n {\lambda _{1n}} is the spheroid’s eigenvalue for the given parameter h h of the spheroidal wave function.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb026f509819f51a4c0bd67c262c6cc7 https://doi.org/10.1090/qam/1417235 Zobrazit plný text záznamu