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High‐frequency approximation for mutual coupling calculations between apertures on a perfect electric conductor circular cylinder covered with a dielectric layer: Nonparaxial region
Author(s) -
Persson Patrik,
Rojas Roberto G.
Publication year - 2003
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2002rs002745
Subject(s) - perfect conductor , conductor , cylinder , optics , dielectric , transformation (genetics) , mathematical analysis , coupling (piping) , function (biology) , representation (politics) , surface (topology) , physics , mathematics , geometry , computational physics , materials science , scattering , quantum mechanics , biochemistry , chemistry , evolutionary biology , biology , politics , political science , law , gene , metallurgy
An asymptotic Green's function technique is presented for the calculation of the surface fields on a perfect electric conductor circular cylinder covered with a dielectric layer. The sources are apertures located on the perfect electric conductor surface. This method is very efficient and valid for large cylinders in terms of wavelengths. The new representation is obtained via Watson's transformation and integral contour deformations. The efficiency of the method results from the circumferentially propagating representation of the Green's function as well as the efficient numerical evaluation of various integrals. Numerical results are presented showing good agreement when compared to other solutions as well as measurements.