NDLI: Surface impedance characterization for UTD based solution with IBC for surface fields on a dielectric-coated PEC circular cylinder

Content Provider	IEEE Xplore Digital Library
Author	Garcia-Aguilar, A. Sipus, Z. Sierra-Perez, M.
Copyright Year	2012
Description	Author affiliation: Faculty of Electrical, Engineering and Computing; University of Zagreb., Unska 3, 10000 Zagreb, Croatia (Sipus, Z.) \|\| Signals, Systems and Radiocommunications Department; Technical University of Madrid., Avda. Complutense, 30, 28040 Madrid, Spain (Garcia-Aguilar, A.; Sierra-Perez, M.)
Abstract	A novel formulation for the surface impedance characterization is introduced for the canonical problem of surface fields on a perfect electric conductor (PEC) circular cylinder with a dielectric coating due to a electric current source using the Uniform Theory of Diffraction (UTD) with an Impedance Boundary Condition (IBC). The approach is based on a TE/TM assumption of the surface fields from the original problem. Where this surface impedance fails, an optimization is performed to minimize the error in the SD Green's function between the original problem and the equivalent one with the IBC. This new approach requires small changes in the available UTD based solution with IBC to include the geodesic ray angle and length dependence in the surface impedance formulas. This asymptotic method, accurate for large separations between source and observer points, in combination with spectral domain (SD) Green's functions for multidielectric coatings leads to a new hybrid SD-UTD with IBC to calculate mutual coupling among microstrip patches on a multilayer dielectric-coated PEC circular cylinder. Results are compared with the eigenfunction solution in SD, where a very good agreement is met.
Starting Page	163
Ending Page	167
File Size	313042
Page Count	5
File Format	PDF
ISBN	9781457709180
e-ISBN	9781457709203
e-ISBN	9781457709197
DOI	10.1109/EuCAP.2012.6206154
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-26
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface impedance surface impedance hybrid electromagnetic methods Nonhomogeneous media Boundary conditions uniform theory of diffraction (UTD) Eigenvalues and eigenfunctions Green's function Dielectrics Conformal array antennas Impedance Surface treatment
Content Type	Text
Resource Type	Article

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