This second part of a three-paper sequence deals with the spatial domain parametrization and physical interpretation of the relevant asymptotic high-frequency Green's function for a semi-infinite phased array of parallel dipoles on an infinite stratified grounded dielectric slab. This array Green's function (AGF) has been previously derived using a spectral domain formulation; the relevant asymptotic solution contains contributions associated with Floquet waves (Ms), and corresponding surface, leaky and diffracted waves excited at the array edge. Both the truncated-FW series and the series of corresponding diffracted field contributions exhibit excellent convergence properties. In the present paper, through application of the Poisson summation, the AGF for a plane-stratified grounded dielectric slab is developed in terms of space domain FW-dependent Kirchhoff radiation integrals which are synthesized by superposition of periodicity-modulated phased line sources oriented parallel to the edge. The asymptotic evaluation of each Kirchhoff radiation integral leads to a grouping of various asymptotic terms, which provide physically appealing interpretations of a variety of wave processes, encompassing slab-modulated propagating (radiating) and evanescent (non-radiating) FWs, slab-guided surface waves (SWs) or leaky waves (LWs), and their edge-coupled phenomenologies. The present space domain parametrization leads to the same asymptotics as that from the spectral domain parametrization, but allows a clear description of the spatial wave interaction processes. Index Terms-Diffraction, high frequency, patch array antennas.
High-Frequency Green's Function for a Semi-Infinite Array of Electric Dipoles on a Grounded Slab. Part II: Spatial Domain Parameterization / S., Maci; A., Toccafondi; Polemi, Alessia; L. B., Felsen. - In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. - ISSN 0018-926X. - STAMPA. - 53(2005), pp. 1364-1376.
Data di pubblicazione: | 2005 |
Titolo: | High-Frequency Green's Function for a Semi-Infinite Array of Electric Dipoles on a Grounded Slab. Part II: Spatial Domain Parameterization |
Autore/i: | S., Maci; A., Toccafondi; Polemi, Alessia; L. B., Felsen |
Autore/i UNIMORE: | |
Rivista: | |
Volume: | 53 |
Pagina iniziale: | 1364 |
Pagina finale: | 1376 |
Codice identificativo ISI: | WOS:000228192400014 |
Codice identificativo Scopus: | 2-s2.0-13944253881 |
Citazione: | High-Frequency Green's Function for a Semi-Infinite Array of Electric Dipoles on a Grounded Slab. Part II: Spatial Domain Parameterization / S., Maci; A., Toccafondi; Polemi, Alessia; L. B., Felsen. - In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. - ISSN 0018-926X. - STAMPA. - 53(2005), pp. 1364-1376. |
Tipologia | Articolo su rivista |
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