Identificador persistente para citar o vincular este elemento:
http://hdl.handle.net/10662/18332
Títulos: | Scan-angle-independent FEM analysis of infinite arrays based on spherical harmonic lattice sums and the Generalized Scattering Matrix of an isolated antenna |
Autores/as: | Rubio Ruiz, Jesús González de Aza, Miguel Ángel Córcoles, Juan Gómez Alcalá, Rafael |
Palabras clave: | Teoremas de suma;Método de elementos finitos (FEM);Matriz de dispersión generalizada (GSM);Sumas reticulares;Modos esféricos;Addition theorems;Finite element method (FEM);Generalized scattering matrix (GSM);Lattice sums;Spherical modes |
Fecha de publicación: | 2022 |
Fuente: | Rubio, J., González de Aza, M.A., Córcoles, J. and Gómez Alcalá, R.(2022). Scan-angle-independent FEM analysis of infinite arrays based on spherical harmonic lattice sums and the Generalized Scattering Matrix of an isolated antenna |
Resumen: | Infinite periodic arrays of antennas that can be individually described by means of spherical modes are analyzed starting from the generalized scattering matrix (GSM) of an isolated element. After computing the GSM of an isolated element with the finite-element method (FEM), a fast postprocessing can be carried out to calculate the response of the element in an infinite array environment by using addition theorems for spherical modes. For this purpose, an efficient computation of lattice sums of spherical harmonics is used. The main advantage of this method is that the antenna is analyzed only once whatever the array lattice or scan angle. In addition, fast frequency analysis can be performed since the starting point is the computation of the isolated antenna with the FEM, which is suitable for fast frequency sweep. The active reflection coefficient and the embedded radiation pattern of the infinite periodic array are calculated for several examples to show the capabilities of the proposed method. |
Descripción: | Publicado en IEEE Transactions on Antennas and Propagation el 22 July 2022, ( Volume 70, Issue 11, November 2022) con DOI: 10.1109/TAP.2022.3191751 |
URI: | http://hdl.handle.net/10662/18332 |
Colección: | DTCYC - Artículos |
Archivos
Archivo | Descripción | Tamaño | Formato | |
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TAP_2022_3191751_final_version_TAP.pdf | 3,36 MB | Adobe PDF | Descargar |
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